--- /dev/null	2018-04-05 19:09:31.849588610 +0200
+++ new/src/hotspot/share/gc/epsilon/epsilon_globals.hpp	2018-04-26 19:34:13.633296702 +0200
@@ -0,0 +1,70 @@
+/*
+ * Copyright (c) 2017, 2018, Red Hat, Inc. 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_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 GC_EPSILON_FLAGS(develop,                                           \
+                    develop_pd,                                             \
+                    product,                                                \
+                    product_pd,                                             \
+                    diagnostic,                                             \
+                    diagnostic_pd,                                          \
+                    experimental,                                           \
+                    notproduct,                                             \
+                    manageable,                                             \
+                    product_rw,                                             \
+                    lp64_product,                                           \
+                    range,                                                  \
+                    constraint,                                             \
+                    writeable)                                              \
+                                                                            \
+  experimental(size_t, EpsilonPrintHeapStep, 100,                           \
+          "Print heap occupancy stats with this number of steps. "          \
+          "0 turns the printing off.")                                      \
+          range(0, max_intx)                                                \
+                                                                            \
+  experimental(size_t, EpsilonUpdateCountersStep, 1 * M,                    \
+          "Update heap heap occupancy counters after allocating this much " \
+          "memory. Higher values would make allocations faster at "         \
+          "the expense of lower resolution in heap counters.")              \
+          range(1, max_intx)                                                \
+                                                                            \
+  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)
+
+#endif // SHARE_VM_GC_EPSILON_GLOBALS_HPP