1 /*
   2  * Copyright (c) 2011, 2016, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 package jdk.vm.ci.hotspot;
  24 
  25 import jdk.vm.ci.code.StackSlot;
  26 import jdk.vm.ci.code.site.DataPatch;
  27 import jdk.vm.ci.code.site.Site;
  28 import jdk.vm.ci.meta.Assumptions.Assumption;
  29 import jdk.vm.ci.meta.ResolvedJavaMethod;
  30 
  31 /**
  32  * {@link HotSpotCompiledCode} destined for installation as an nmethod.
  33  */
  34 public final class HotSpotCompiledNmethod extends HotSpotCompiledCode {
  35 
  36     protected final HotSpotResolvedJavaMethod method;
  37     protected final int entryBCI;
  38 
  39     /**
  40      * Compilation identifier.
  41      */
  42     protected final int id;
  43 
  44     /**
  45      * Address of a native {@code JVMCIEnv} object or 0L if no such object exists.
  46      */
  47     protected final long jvmciEnv;
  48 
  49     protected final boolean hasUnsafeAccess;
  50 
  51     /**
  52      * May be set by VM if code installation fails. It will describe in more detail why installation
  53      * failed (e.g., exactly which dependency failed).
  54      */
  55     @SuppressFBWarnings(value = "UWF_UNWRITTEN_FIELD", justification = "set by the VM") private String installationFailureMessage;
  56 
  57     public HotSpotCompiledNmethod(String name, byte[] targetCode, int targetCodeSize, Site[] sites, Assumption[] assumptions, ResolvedJavaMethod[] methods, Comment[] comments, byte[] dataSection,
  58                     int dataSectionAlignment, DataPatch[] dataSectionPatches, boolean isImmutablePIC, int totalFrameSize, StackSlot deoptRescueSlot, HotSpotResolvedJavaMethod method, int entryBCI,
  59                     int id, long jvmciEnv, boolean hasUnsafeAccess) {
  60         super(name, targetCode, targetCodeSize, sites, assumptions, methods, comments, dataSection, dataSectionAlignment, dataSectionPatches, isImmutablePIC, totalFrameSize, deoptRescueSlot);
  61         this.method = method;
  62         this.entryBCI = entryBCI;
  63         this.id = id;
  64         this.jvmciEnv = jvmciEnv;
  65         this.hasUnsafeAccess = hasUnsafeAccess;
  66     }
  67 
  68     @Override
  69     public String toString() {
  70         return getClass().getSimpleName() + "[" + id + ":" + method.format("%H.%n(%p)%r@") + entryBCI + "]";
  71     }
  72 
  73     public String getInstallationFailureMessage() {
  74         return installationFailureMessage;
  75     }
  76 }