src/jdk.internal.vm.ci/share/classes/jdk.vm.ci.hotspot/src/jdk/vm/ci/hotspot/HotSpotInstalledCode.java
author kvn
Wed, 01 May 2019 12:31:29 -0700
changeset 54669 ad45b3802d4e
parent 47216 71c04702a3d5
permissions -rw-r--r--
8220623: [JVMCI] Update JVMCI to support JVMCI based Compiler compiled into shared library Reviewed-by: dnsimon, never, stefank, rehn, neliasso, dholmes, kbarrett, coleenp
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/*
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 * Copyright (c) 2011, 2019, 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 jdk.vm.ci.hotspot;
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import static jdk.vm.ci.hotspot.CompilerToVM.compilerToVM;
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import jdk.vm.ci.code.InstalledCode;
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/**
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 * Implementation of {@link InstalledCode} for HotSpot representing a {@code CodeBlob}. The address
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 * of the {@code CodeBlob} is stored in {@link InstalledCode#address}.
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 */
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public abstract class HotSpotInstalledCode extends InstalledCode {
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    /**
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     * Total size of the code blob (i.e. {@code CodeBlob::size()}).
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     */
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    @SuppressFBWarnings(value = "UWF_UNWRITTEN_FIELD", justification = "field is set by the native part") private int size;
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    /**
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     * Start address of the code (i.e. {@code CodeBlob::code_begin()}).
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     */
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    @SuppressFBWarnings(value = "UWF_UNWRITTEN_FIELD", justification = "field is set by the native part") private long codeStart;
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    /**
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     * Size of the code (i.e. {@code CodeBlob::code_size()}).
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     */
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    @SuppressFBWarnings(value = "UWF_UNWRITTEN_FIELD", justification = "field is set by the native part") private int codeSize;
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    public HotSpotInstalledCode(String name) {
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        super(name);
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    }
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    /**
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     * Gets the value of {@code CodeBlob::size()}.
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     */
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    public int getSize() {
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        return size;
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    }
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    @Override
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    public abstract String toString();
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    /**
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     * Gets the value of {@code CodeBlob::code_begin()} if {@linkplain #isValid() valid}, 0
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     * otherwise.
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     */
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    @Override
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    public long getStart() {
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        return codeStart;
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    }
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    /**
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     * Gets the value of {@code CodeBlob::code_size()} if {@linkplain #isValid() valid}, 0
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     * otherwise.
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     */
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    public long getCodeSize() {
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        return codeSize;
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    }
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    @Override
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    public byte[] getCode() {
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        return compilerToVM().getCode(this);
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    }
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}