1 /* 2 * Copyright (c) 2011, 2015, 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 java.lang.reflect.Modifier; 26 27 import jdk.vm.ci.meta.JavaMethod; 28 import jdk.vm.ci.meta.ResolvedJavaMethod; 29 import jdk.vm.ci.meta.ResolvedJavaType; 30 31 /** 32 * Implementation of {@link JavaMethod} for resolved HotSpot methods. 33 */ 34 public interface HotSpotResolvedJavaMethod extends ResolvedJavaMethod { 35 36 /** 37 * Returns true if this method has a {@code CallerSensitive} annotation. 38 * 39 * @return true if CallerSensitive annotation present, false otherwise 40 */ 41 boolean isCallerSensitive(); 42 43 HotSpotResolvedObjectType getDeclaringClass(); 44 45 /** 46 * Returns true if this method has a {@code ForceInline} annotation. 47 * 48 * @return true if ForceInline annotation present, false otherwise 49 */ 50 boolean isForceInline(); 51 52 /** 53 * Returns true if this method has a {@code ReservedStackAccess} annotation. 54 * 55 * @return true if ReservedStackAccess annotation present, false otherwise 56 */ 57 boolean hasReservedStackAccess(); 58 59 /** 60 * Manually adds a DontInline annotation to this method. 61 */ 62 void setNotInlineable(); 63 64 /** 65 * Returns true if this method is one of the special methods that is ignored by security stack 66 * walks. 67 * 68 * @return true if special method ignored by security stack walks, false otherwise 69 */ 70 boolean ignoredBySecurityStackWalk(); 71 72 ResolvedJavaMethod uniqueConcreteMethod(HotSpotResolvedObjectType receiver); 73 74 /** 75 * Returns whether this method has compiled code. 76 * 77 * @return true if this method has compiled code, false otherwise 78 */ 79 boolean hasCompiledCode(); 80 81 /** 82 * @param level 83 * @return true if the currently installed code was generated at {@code level}. 84 */ 85 boolean hasCompiledCodeAtLevel(int level); 86 87 default boolean isDefault() { 88 if (isConstructor()) { 89 return false; 90 } 91 // Copied from java.lang.Method.isDefault() 92 int mask = Modifier.ABSTRACT | Modifier.PUBLIC | Modifier.STATIC; 93 return ((getModifiers() & mask) == Modifier.PUBLIC) && getDeclaringClass().isInterface(); 94 } 95 96 /** 97 * Returns the offset of this method into the v-table. The method must have a v-table entry as 98 * indicated by {@link #isInVirtualMethodTable(ResolvedJavaType)}, otherwise an exception is 99 * thrown. 100 * 101 * @return the offset of this method into the v-table 102 */ 103 int vtableEntryOffset(ResolvedJavaType resolved); 104 105 int intrinsicId(); 106 107 /** 108 * Determines if this method denotes itself as a candidate for intrinsification. As of JDK 9, 109 * this is denoted by the {@code HotSpotIntrinsicCandidate} annotation. In earlier JDK versions, 110 * this method returns true. 111 * 112 * @see <a href="https://bugs.openjdk.java.net/browse/JDK-8076112">JDK-8076112</a> 113 */ 114 boolean isIntrinsicCandidate(); 115 116 /** 117 * Allocates a compile id for this method by asking the VM for one. 118 * 119 * @param entryBCI entry bci 120 * @return compile id 121 */ 122 int allocateCompileId(int entryBCI); 123 124 boolean hasCodeAtLevel(int entryBCI, int level); 125 }