diff -r be620a591379 -r 8e22715afabc src/hotspot/share/gc/epsilon/epsilon_globals.hpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/share/gc/epsilon/epsilon_globals.hpp	Mon Nov 06 18:53:38 2017 +0100
@@ -0,0 +1,72 @@
+/*
+ * Copyright (c) 2017, Red Hat, Inc. and/or its affiliates.
+ * 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_VM_GC_EPSILON_GLOBALS_HPP
+#define SHARE_VM_GC_EPSILON_GLOBALS_HPP
+
+#include "runtime/globals.hpp"
+//
+// Defines all globals flags used by the Epsilon GC.
+//
+
+#define EPSILON_FLAGS(develop, \
+                 develop_pd, \
+                 product, \
+                 product_pd, \
+                 diagnostic, \
+                 diagnostic_pd, \
+                 experimental, \
+                 notproduct, \
+                 manageable, \
+                 product_rw, \
+                 range, \
+                 constraint, \
+                 writeable) \
+                                                                            \
+  experimental(size_t, EpsilonMaxTLABSize, 4 * M,                           \
+          "Max TLAB size to use with Epsilon GC. Larger value improves "    \
+          "performance at the expense of per-thread memory waste. This "    \
+          "asks TLAB machinery to cap TLAB sizes at this value")            \
+          range(1, max_intx)                                                \
+                                                                            \
+  experimental(size_t, EpsilonMinHeapExpand, 128 * M,                       \
+          "Min expansion step for heap. Larger value improves performance " \
+          "at the potential expense of memory waste.")                      \
+          range(1, max_intx)
+
+EPSILON_FLAGS(DECLARE_DEVELOPER_FLAG, \
+         DECLARE_PD_DEVELOPER_FLAG, \
+         DECLARE_PRODUCT_FLAG, \
+         DECLARE_PD_PRODUCT_FLAG, \
+         DECLARE_DIAGNOSTIC_FLAG, \
+         DECLARE_PD_DIAGNOSTIC_FLAG, \
+         DECLARE_EXPERIMENTAL_FLAG, \
+         DECLARE_NOTPRODUCT_FLAG, \
+         DECLARE_MANAGEABLE_FLAG, \
+         DECLARE_PRODUCT_RW_FLAG, \
+         IGNORE_RANGE, \
+         IGNORE_CONSTRAINT, \
+         IGNORE_WRITEABLE)
+
+#endif // SHARE_VM_GC_EPSILON_GLOBALS_HPP