Mercurial > hg > truffle
view graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/replacements/AESCryptSubstitutions.java @ 16842:7e9893eba204
fixed canonicalizeprojects issue
author | Doug Simon <doug.simon@oracle.com> |
---|---|
date | Fri, 15 Aug 2014 11:39:17 +0200 |
parents | af0e42dad358 |
children | 3566e1edb3b4 |
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/* * Copyright (c) 2012, 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.graal.hotspot.replacements; import static com.oracle.graal.hotspot.HotSpotBackend.*; import static com.oracle.graal.hotspot.replacements.HotSpotReplacementsUtil.*; import sun.misc.*; import com.oracle.graal.api.meta.*; import com.oracle.graal.api.replacements.*; import com.oracle.graal.compiler.common.*; import com.oracle.graal.graph.Node.ConstantNodeParameter; import com.oracle.graal.graph.Node.NodeIntrinsic; import com.oracle.graal.hotspot.*; import com.oracle.graal.hotspot.nodes.*; import com.oracle.graal.nodes.*; import com.oracle.graal.nodes.extended.*; import com.oracle.graal.word.*; /** * Substitutions for {@code com.sun.crypto.provider.AESCrypt} methods. */ @ClassSubstitution(className = "com.sun.crypto.provider.AESCrypt", optional = true, defaultGuard = AESCryptSubstitutions.Guard.class) public class AESCryptSubstitutions { public static class Guard implements SubstitutionGuard { public boolean execute() { HotSpotVMConfig config = HotSpotGraalRuntime.runtime().getConfig(); if (config.useAESIntrinsics) { assert config.aescryptEncryptBlockStub != 0L; assert config.aescryptDecryptBlockStub != 0L; assert config.cipherBlockChainingEncryptAESCryptStub != 0L; assert config.cipherBlockChainingDecryptAESCryptStub != 0L; } return config.useAESIntrinsics; } } static final long kOffset; static final Class<?> AESCryptClass; static { try { // Need to use launcher class path as com.sun.crypto.provider.AESCrypt // is normally not on the boot class path ClassLoader cl = Launcher.getLauncher().getClassLoader(); AESCryptClass = Class.forName("com.sun.crypto.provider.AESCrypt", true, cl); kOffset = UnsafeAccess.unsafe.objectFieldOffset(AESCryptClass.getDeclaredField("K")); } catch (Exception ex) { throw new GraalInternalError(ex); } } @MethodSubstitution(isStatic = false) static void encryptBlock(Object rcvr, byte[] in, int inOffset, byte[] out, int outOffset) { crypt(rcvr, in, inOffset, out, outOffset, true); } @MethodSubstitution(isStatic = false) static void decryptBlock(Object rcvr, byte[] in, int inOffset, byte[] out, int outOffset) { crypt(rcvr, in, inOffset, out, outOffset, false); } private static void crypt(Object rcvr, byte[] in, int inOffset, byte[] out, int outOffset, boolean encrypt) { Object realReceiver = PiNode.piCastNonNull(rcvr, AESCryptClass); Object kObject = UnsafeLoadNode.load(realReceiver, kOffset, Kind.Object, LocationIdentity.ANY_LOCATION); Word kAddr = (Word) Word.fromObject(kObject).add(arrayBaseOffset(Kind.Byte)); Word inAddr = Word.unsigned(GetObjectAddressNode.get(in) + arrayBaseOffset(Kind.Byte) + inOffset); Word outAddr = Word.unsigned(GetObjectAddressNode.get(out) + arrayBaseOffset(Kind.Byte) + outOffset); if (encrypt) { encryptBlockStub(ENCRYPT_BLOCK, inAddr, outAddr, kAddr); } else { decryptBlockStub(DECRYPT_BLOCK, inAddr, outAddr, kAddr); } } @NodeIntrinsic(ForeignCallNode.class) public static native void encryptBlockStub(@ConstantNodeParameter ForeignCallDescriptor descriptor, Word in, Word out, Word key); @NodeIntrinsic(ForeignCallNode.class) public static native void decryptBlockStub(@ConstantNodeParameter ForeignCallDescriptor descriptor, Word in, Word out, Word key); }