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 }