1 /* 2 * Copyright (c) 2016, 2020, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 25 package org.graalvm.compiler.hotspot.replacements; 26 27 import static org.graalvm.compiler.hotspot.GraalHotSpotVMConfig.INJECTED_INTRINSIC_CONTEXT; 28 import static org.graalvm.compiler.hotspot.GraalHotSpotVMConfig.INJECTED_METAACCESS; 29 30 import org.graalvm.compiler.api.replacements.ClassSubstitution; 31 import org.graalvm.compiler.api.replacements.Fold; 32 import org.graalvm.compiler.api.replacements.MethodSubstitution; 33 import org.graalvm.compiler.hotspot.HotSpotBackend; 34 import org.graalvm.compiler.nodes.ComputeObjectAddressNode; 35 import org.graalvm.compiler.nodes.PiNode; 36 import org.graalvm.compiler.nodes.extended.RawLoadNode; 37 import org.graalvm.compiler.nodes.graphbuilderconf.IntrinsicContext; 38 import org.graalvm.compiler.replacements.ReplacementsUtil; 39 import org.graalvm.compiler.word.Word; 40 import jdk.internal.vm.compiler.word.LocationIdentity; 41 import jdk.internal.vm.compiler.word.WordFactory; 42 43 import jdk.vm.ci.meta.JavaKind; 44 45 @ClassSubstitution(className = "sun.security.provider.SHA2", optional = true) 46 public class SHA2Substitutions { 47 48 @MethodSubstitution(isStatic = false) implCompress0(Object receiver, byte[] buf, int ofs)49 static void implCompress0(Object receiver, byte[] buf, int ofs) { 50 Object realReceiver = PiNode.piCastNonNull(receiver, HotSpotReplacementsUtil.methodHolderClass(INJECTED_INTRINSIC_CONTEXT)); 51 Object state = RawLoadNode.load(realReceiver, stateOffset(INJECTED_INTRINSIC_CONTEXT), JavaKind.Object, LocationIdentity.any()); 52 Word bufAddr = WordFactory.unsigned(ComputeObjectAddressNode.get(buf, ReplacementsUtil.getArrayBaseOffset(INJECTED_METAACCESS, JavaKind.Byte) + ofs)); 53 Word stateAddr = WordFactory.unsigned(ComputeObjectAddressNode.get(state, ReplacementsUtil.getArrayBaseOffset(INJECTED_METAACCESS, JavaKind.Int))); 54 HotSpotBackend.sha2ImplCompressStub(bufAddr, stateAddr); 55 } 56 57 @Fold stateOffset(@old.InjectedParameter IntrinsicContext context)58 static long stateOffset(@Fold.InjectedParameter IntrinsicContext context) { 59 return HotSpotReplacementsUtil.getFieldOffset(HotSpotReplacementsUtil.methodHolderClass(context), "state"); 60 } 61 } 62