| /* |
| * Copyright (c) 2016, 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 org.graalvm.compiler.hotspot.replacements; |
| |
| import static org.graalvm.compiler.core.common.util.Util.Java8OrEarlier; |
| import static jdk.vm.ci.hotspot.HotSpotJVMCIRuntimeProvider.getArrayBaseOffset; |
| |
| import org.graalvm.compiler.api.replacements.ClassSubstitution; |
| import org.graalvm.compiler.api.replacements.MethodSubstitution; |
| import org.graalvm.compiler.core.common.LocationIdentity; |
| import org.graalvm.compiler.debug.GraalError; |
| import org.graalvm.compiler.hotspot.HotSpotBackend; |
| import org.graalvm.compiler.hotspot.nodes.ComputeObjectAddressNode; |
| import org.graalvm.compiler.nodes.PiNode; |
| import org.graalvm.compiler.nodes.extended.UnsafeLoadNode; |
| import org.graalvm.compiler.word.Word; |
| |
| import jdk.vm.ci.meta.JavaKind; |
| |
| @ClassSubstitution(className = "sun.security.provider.SHA5", optional = true) |
| public class SHA5Substitutions { |
| |
| static final long stateOffset; |
| |
| static final Class<?> shaClass; |
| |
| public static final String implCompressName = Java8OrEarlier ? "implCompress" : "implCompress0"; |
| |
| static { |
| try { |
| // Need to use the system class loader as com.sun.crypto.provider.AESCrypt |
| // is normally loaded by the extension class loader which is not delegated |
| // to by the JVMCI class loader. |
| ClassLoader cl = ClassLoader.getSystemClassLoader(); |
| shaClass = Class.forName("sun.security.provider.SHA5", true, cl); |
| stateOffset = UnsafeAccess.UNSAFE.objectFieldOffset(shaClass.getDeclaredField("state")); |
| } catch (Exception ex) { |
| throw new GraalError(ex); |
| } |
| } |
| |
| @MethodSubstitution(isStatic = false) |
| static void implCompress0(Object receiver, byte[] buf, int ofs) { |
| Object realReceiver = PiNode.piCastNonNull(receiver, shaClass); |
| Object state = UnsafeLoadNode.load(realReceiver, stateOffset, JavaKind.Object, LocationIdentity.any()); |
| Word bufAddr = Word.unsigned(ComputeObjectAddressNode.get(buf, getArrayBaseOffset(JavaKind.Byte) + ofs)); |
| Word stateAddr = Word.unsigned(ComputeObjectAddressNode.get(state, getArrayBaseOffset(JavaKind.Int))); |
| HotSpotBackend.sha5ImplCompressStub(bufAddr, stateAddr); |
| } |
| } |