Mercurial > hg > truffle
view graal/com.oracle.graal.truffle.hotspot.amd64/src/com/oracle/graal/truffle/hotspot/amd64/util/OptimizedCallTargetFieldInfo.java @ 12529:23dc5dfdb9c7
Add OptimizedCallTarget.call(PackedFrame, Arguments) frame prologue injection
author | Matthias Grimmer <grimmer@ssw.jku.at> |
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date | Tue, 22 Oct 2013 13:25:37 +0200 |
parents | |
children | 7d5c3ffbee64 |
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/* * Copyright (c) 2013, 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.truffle.hotspot.amd64.util; import java.lang.reflect.*; import sun.misc.*; import com.oracle.graal.graph.*; import com.oracle.graal.hotspot.meta.*; import com.oracle.graal.truffle.*; public class OptimizedCallTargetFieldInfo { private static final Unsafe unsafe = UnsafeAccess.unsafe; private static int compiledMethodFieldOffset = -1; private static int codeBlobFieldOffset = -1; public static int getCodeBlobFieldOffset() { if (codeBlobFieldOffset == -1) { try { HotSpotInstalledCode.class.getDeclaredField("codeBlob").setAccessible(true); Field codeBlobField = HotSpotInstalledCode.class.getDeclaredField("codeBlob"); codeBlobFieldOffset = (int) unsafe.objectFieldOffset(codeBlobField); } catch (NoSuchFieldException | SecurityException e) { throw GraalInternalError.shouldNotReachHere(); } return codeBlobFieldOffset; } else { return codeBlobFieldOffset; } } public static int getCompiledMethodFieldOffset() { if (compiledMethodFieldOffset == -1) { try { OptimizedCallTarget.class.getDeclaredField("compiledMethod").setAccessible(true); Field compiledMethodField = OptimizedCallTarget.class.getDeclaredField("compiledMethod"); compiledMethodFieldOffset = (int) unsafe.objectFieldOffset(compiledMethodField); } catch (NoSuchFieldException | SecurityException e) { throw GraalInternalError.shouldNotReachHere(); } return compiledMethodFieldOffset; } else { return compiledMethodFieldOffset; } } }