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.inittimer.SuppressFBWarnings; 29 import jdk.vm.ci.meta.Assumptions.Assumption; 30 import jdk.vm.ci.meta.ResolvedJavaMethod; 31 32 /** 33 * {@link HotSpotCompiledCode} destined for installation as an nmethod. 34 */ 35 public final class HotSpotCompiledNmethod extends HotSpotCompiledCode { 36 37 protected final HotSpotResolvedJavaMethod method; 38 protected final int entryBCI; 39 40 /** 41 * Compilation identifier. 42 */ 43 protected final int id; 44 45 /** 46 * Address of a native {@code JVMCIEnv} object or 0L if no such object exists. 47 */ 48 protected final long jvmciEnv; 49 50 protected final boolean hasUnsafeAccess; 51 52 /** 53 * May be set by VM if code installation fails. It will describe in more detail why installation 54 * failed (e.g., exactly which dependency failed). 55 */ 56 @SuppressFBWarnings(value = "UWF_UNWRITTEN_FIELD", justification = "set by the VM") private String installationFailureMessage; 57 58 public HotSpotCompiledNmethod(String name, byte[] targetCode, int targetCodeSize, Site[] sites, Assumption[] assumptions, ResolvedJavaMethod[] methods, Comment[] comments, byte[] dataSection, 59 int dataSectionAlignment, DataPatch[] dataSectionPatches, boolean isImmutablePIC, int totalFrameSize, StackSlot deoptRescueSlot, HotSpotResolvedJavaMethod method, int entryBCI, 60 int id, long jvmciEnv, boolean hasUnsafeAccess) { 61 super(name, targetCode, targetCodeSize, sites, assumptions, methods, comments, dataSection, dataSectionAlignment, dataSectionPatches, isImmutablePIC, totalFrameSize, deoptRescueSlot); 62 this.method = method; 63 this.entryBCI = entryBCI; 64 this.id = id; 65 this.jvmciEnv = jvmciEnv; 66 this.hasUnsafeAccess = hasUnsafeAccess; 67 } 68 69 @Override 70 public String toString() { 71 return getClass().getSimpleName() + "[" + id + ":" + method.format("%H.%n(%p)%r@") + entryBCI + "]"; 72 } 73 74 public String getInstallationFailureMessage() { 75 return installationFailureMessage; 76 } 77 }