1 /*
   2  * Copyright (c) 2011, 2014, 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.*;
  26 import jdk.vm.ci.inittimer.*;
  27 
  28 /**
  29  * {@link HotSpotCompiledCode} destined for installation as an nmethod.
  30  */
  31 public final class HotSpotCompiledNmethod extends HotSpotCompiledCode {
  32 
  33     public final HotSpotResolvedJavaMethod method;
  34     public final int entryBCI;
  35     public final int id;
  36     public final long jvmciEnv;
  37     public final boolean hasUnsafeAccess;
  38 
  39     /**
  40      * May be set by VM if code installation fails. It will describe in more detail why installation
  41      * failed (e.g., exactly which dependency failed).
  42      */
  43     @SuppressFBWarnings(value = "UWF_UNWRITTEN_FIELD", justification = "set by the VM") private String installationFailureMessage;
  44 
  45     public HotSpotCompiledNmethod(HotSpotResolvedJavaMethod method, CompilationResult compResult) {
  46         this(method, compResult, 0L);
  47     }
  48 
  49     public HotSpotCompiledNmethod(HotSpotResolvedJavaMethod method, CompilationResult compResult, long jvmciEnv) {
  50         super(compResult);
  51         this.method = method;
  52         this.entryBCI = compResult.getEntryBCI();
  53         this.id = compResult.getId();
  54         this.jvmciEnv = jvmciEnv;
  55         this.hasUnsafeAccess = compResult.hasUnsafeAccess();
  56     }
  57 
  58     @Override
  59     public String toString() {
  60         return getClass().getSimpleName() + "[" + id + ":" + method.format("%H.%n(%p)%r@") + entryBCI + "]";
  61     }
  62 
  63     public String getInstallationFailureMessage() {
  64         return installationFailureMessage;
  65     }
  66 }