--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.jvmci.hotspot/src/com/oracle/jvmci/hotspot/HotSpotJVMCIRuntimeProvider.java	Tue May 26 17:13:37 2015 +0200
@@ -0,0 +1,123 @@
+/*
+ * Copyright (c) 2015, 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.
+ */
+package com.oracle.jvmci.hotspot;
+
+import sun.misc.*;
+
+import com.oracle.graal.api.meta.*;
+import com.oracle.jvmci.common.*;
+import com.oracle.jvmci.runtime.*;
+
+//JaCoCo Exclude
+
+/**
+ * Configuration information for the HotSpot Graal runtime.
+ */
+public interface HotSpotJVMCIRuntimeProvider extends JVMCIRuntime {
+
+    HotSpotVMConfig getConfig();
+
+    CompilerToVM getCompilerToVM();
+
+    /**
+     * Converts a name to a Java type. This method attempts to resolve {@code name} to a
+     * {@link ResolvedJavaType}.
+     *
+     * @param name a well formed Java type in {@linkplain JavaType#getName() internal} format
+     * @param accessingType the context of resolution which must be non-null
+     * @param resolve specifies whether resolution failure results in an unresolved type being
+     *            return or a {@link LinkageError} being thrown
+     * @return a Java type for {@code name} which is guaranteed to be of type
+     *         {@link ResolvedJavaType} if {@code resolve == true}
+     * @throws LinkageError if {@code resolve == true} and the resolution failed
+     * @throws NullPointerException if {@code accessingClass} is {@code null}
+     */
+    JavaType lookupType(String name, HotSpotResolvedObjectType accessingType, boolean resolve);
+
+    /**
+     * Gets the Graal mirror for a {@link Class} object.
+     *
+     * @return the {@link ResolvedJavaType} corresponding to {@code javaClass}
+     */
+    ResolvedJavaType fromClass(Class<?> clazz);
+
+    /**
+     * The offset from the origin of an array to the first element.
+     *
+     * @return the offset in bytes
+     */
+    default int getArrayBaseOffset(Kind kind) {
+        switch (kind) {
+            case Boolean:
+                return Unsafe.ARRAY_BOOLEAN_BASE_OFFSET;
+            case Byte:
+                return Unsafe.ARRAY_BYTE_BASE_OFFSET;
+            case Char:
+                return Unsafe.ARRAY_CHAR_BASE_OFFSET;
+            case Short:
+                return Unsafe.ARRAY_SHORT_BASE_OFFSET;
+            case Int:
+                return Unsafe.ARRAY_INT_BASE_OFFSET;
+            case Long:
+                return Unsafe.ARRAY_LONG_BASE_OFFSET;
+            case Float:
+                return Unsafe.ARRAY_FLOAT_BASE_OFFSET;
+            case Double:
+                return Unsafe.ARRAY_DOUBLE_BASE_OFFSET;
+            case Object:
+                return Unsafe.ARRAY_OBJECT_BASE_OFFSET;
+            default:
+                throw new JVMCIError("%s", kind);
+        }
+    }
+
+    /**
+     * The scale used for the index when accessing elements of an array of this kind.
+     *
+     * @return the scale in order to convert the index into a byte offset
+     */
+    default int getArrayIndexScale(Kind kind) {
+        switch (kind) {
+            case Boolean:
+                return Unsafe.ARRAY_BOOLEAN_INDEX_SCALE;
+            case Byte:
+                return Unsafe.ARRAY_BYTE_INDEX_SCALE;
+            case Char:
+                return Unsafe.ARRAY_CHAR_INDEX_SCALE;
+            case Short:
+                return Unsafe.ARRAY_SHORT_INDEX_SCALE;
+            case Int:
+                return Unsafe.ARRAY_INT_INDEX_SCALE;
+            case Long:
+                return Unsafe.ARRAY_LONG_INDEX_SCALE;
+            case Float:
+                return Unsafe.ARRAY_FLOAT_INDEX_SCALE;
+            case Double:
+                return Unsafe.ARRAY_DOUBLE_INDEX_SCALE;
+            case Object:
+                return Unsafe.ARRAY_OBJECT_INDEX_SCALE;
+            default:
+                throw new JVMCIError("%s", kind);
+        }
+    }
+}