src/jdk.internal.vm.ci/share/classes/jdk.vm.ci.hotspot/src/jdk/vm/ci/hotspot/HotSpotInstalledCode.java

*** 1,7 ****
  /*
!  * 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.
--- 1,7 ----
  /*
!  * Copyright (c) 2011, 2019, 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.
*** 20,82 ****
   * or visit www.oracle.com if you need additional information or have any
   * questions.
   */
  package jdk.vm.ci.hotspot;
  
! import static jdk.vm.ci.hotspot.UnsafeAccess.UNSAFE;
  
- import jdk.internal.misc.Unsafe;
  import jdk.vm.ci.code.InstalledCode;
  
  /**
!  * Implementation of {@link InstalledCode} for HotSpot.
   */
  public abstract class HotSpotInstalledCode extends InstalledCode {
  
      /**
!      * Total size of the code blob.
       */
      @SuppressFBWarnings(value = "UWF_UNWRITTEN_FIELD", justification = "field is set by the native part") private int size;
  
      /**
!      * Start address of the code.
       */
      @SuppressFBWarnings(value = "UWF_UNWRITTEN_FIELD", justification = "field is set by the native part") private long codeStart;
  
      /**
!      * Size of the code.
       */
      @SuppressFBWarnings(value = "UWF_UNWRITTEN_FIELD", justification = "field is set by the native part") private int codeSize;
  
      public HotSpotInstalledCode(String name) {
          super(name);
      }
  
      /**
!      * @return the total size of this code blob
       */
      public int getSize() {
          return size;
      }
  
      @Override
      public abstract String toString();
  
      @Override
      public long getStart() {
          return codeStart;
      }
  
      public long getCodeSize() {
          return codeSize;
      }
  
      @Override
      public byte[] getCode() {
!         if (!isValid()) {
!             return null;
!         }
!         byte[] code = new byte[codeSize];
!         UNSAFE.copyMemory(null, codeStart, code, Unsafe.ARRAY_BYTE_BASE_OFFSET, codeSize);
!         return code;
      }
  }
--- 20,85 ----
   * or visit www.oracle.com if you need additional information or have any
   * questions.
   */
  package jdk.vm.ci.hotspot;
  
! import static jdk.vm.ci.hotspot.CompilerToVM.compilerToVM;
  
  import jdk.vm.ci.code.InstalledCode;
  
  /**
!  * Implementation of {@link InstalledCode} for HotSpot representing a {@code CodeBlob}. The address
!  * of the {@code CodeBlob} is stored in {@link InstalledCode#address}.
   */
  public abstract class HotSpotInstalledCode extends InstalledCode {
  
      /**
!      * Total size of the code blob (i.e. {@code CodeBlob::size()}).
       */
      @SuppressFBWarnings(value = "UWF_UNWRITTEN_FIELD", justification = "field is set by the native part") private int size;
  
      /**
!      * Start address of the code (i.e. {@code CodeBlob::code_begin()}).
       */
      @SuppressFBWarnings(value = "UWF_UNWRITTEN_FIELD", justification = "field is set by the native part") private long codeStart;
  
      /**
!      * Size of the code (i.e. {@code CodeBlob::code_size()}).
       */
      @SuppressFBWarnings(value = "UWF_UNWRITTEN_FIELD", justification = "field is set by the native part") private int codeSize;
  
      public HotSpotInstalledCode(String name) {
          super(name);
      }
  
      /**
!      * Gets the value of {@code CodeBlob::size()}.
       */
      public int getSize() {
          return size;
      }
  
      @Override
      public abstract String toString();
  
+     /**
+      * Gets the value of {@code CodeBlob::code_begin()} if {@linkplain #isValid() valid}, 0
+      * otherwise.
+      */
      @Override
      public long getStart() {
          return codeStart;
      }
  
+     /**
+      * Gets the value of {@code CodeBlob::code_size()} if {@linkplain #isValid() valid}, 0
+      * otherwise.
+      */
      public long getCodeSize() {
          return codeSize;
      }
  
      @Override
      public byte[] getCode() {
!         return compilerToVM().getCode(this);
      }
  }