Mercurial > hg > graal-jvmci-8
view jvmci/jdk.vm.ci.code/src/jdk/vm/ci/code/InstalledCode.java @ 23320:d9ae6a4319be
add support for MX_ALT_OUTPUT_ROOT
author | Doug Simon <doug.simon@oracle.com> |
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date | Fri, 11 Mar 2016 16:53:36 +0100 |
parents | 088d24f0be35 |
children |
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/* * Copyright (c) 2011, 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 jdk.vm.ci.code; /** * Represents a compiled instance of a method. It may have been invalidated or removed in the * meantime. */ public class InstalledCode { /** * Raw address address of entity representing this installed code. */ protected long address; /** * Raw address of entryPoint of this installed code. */ protected long entryPoint; /** * Counts how often the address field was reassigned. */ protected long version; protected final String name; public InstalledCode(String name) { this.name = name; } /** * @return the address of entity representing this installed code. */ public final long getAddress() { return address; } /** * @return the address of the normal entry point of the installed code. */ public final long getEntryPoint() { return entryPoint; } /** * @return the version number of this installed code */ public final long getVersion() { return version; } /** * Returns the name of this installed code. */ public String getName() { return name; } /** * Returns the start address of this installed code if it is {@linkplain #isValid() valid}, 0 * otherwise. */ public long getStart() { return 0; } /** * @return true if the code represented by this object is still valid for invocation, false * otherwise (may happen due to deopt, etc.) */ public boolean isValid() { return entryPoint != 0; } /** * @return true if the code represented by this object still exists and might have live * activations, false otherwise (may happen due to deopt, etc.) */ public boolean isAlive() { return address != 0; } /** * Returns a copy of this installed code if it is {@linkplain #isValid() valid}, null otherwise. */ public byte[] getCode() { return null; } /** * Invalidates this installed code such that any subsequent * {@linkplain #executeVarargs(Object...) invocation} will throw an * {@link InvalidInstalledCodeException} and all existing invocations will be deoptimized. */ public void invalidate() { throw new UnsupportedOperationException(); } /** * Executes the installed code with a variable number of arguments. * * @param args the array of object arguments * @return the value returned by the executed code */ @SuppressWarnings("unused") public Object executeVarargs(Object... args) throws InvalidInstalledCodeException { throw new UnsupportedOperationException(); } }