62 lines
2.4 KiB
Java
62 lines
2.4 KiB
Java
/*
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* Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package compiler.jvmci.common;
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import java.lang.reflect.Field;
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import java.lang.reflect.Executable;
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import java.lang.reflect.Constructor;
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import java.lang.reflect.Method;
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import jdk.vm.ci.hotspot.CompilerToVMHelper;
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import jdk.vm.ci.hotspot.HotSpotResolvedJavaMethodImpl;
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public class CTVMUtilities {
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/*
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* A method to return HotSpotResolvedJavaMethod object using class object
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* and method as input
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*/
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public static HotSpotResolvedJavaMethodImpl getResolvedMethod(Class<?> cls,
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Executable method) {
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if (!(method instanceof Method || method instanceof Constructor)) {
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throw new Error("wrong executable type " + method.getClass());
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}
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Field slotField;
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int slot;
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try {
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slotField = method.getClass().getDeclaredField("slot");
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boolean old = slotField.isAccessible();
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slotField.setAccessible(true);
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slot = slotField.getInt(method);
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slotField.setAccessible(old);
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} catch (ReflectiveOperationException e) {
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throw new Error("TEST BUG: Can't get slot field", e);
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}
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return CompilerToVMHelper.getResolvedJavaMethodAtSlot(cls, slot);
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}
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public static HotSpotResolvedJavaMethodImpl getResolvedMethod(
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Executable method) {
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return getResolvedMethod(method.getDeclaringClass(), method);
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}
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}
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