Mercurial > hg > graal-compiler
annotate agent/src/share/classes/sun/jvm/hotspot/code/CodeBlob.java @ 6266:1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
6984705: JSR 292 method handle creation should not go through JNI
Summary: remove assembly code for JDK 7 chained method handles
Reviewed-by: jrose, twisti, kvn, mhaupt
Contributed-by: John Rose <john.r.rose@oracle.com>, Christian Thalinger <christian.thalinger@oracle.com>, Michael Haupt <michael.haupt@oracle.com>
| author | twisti |
|---|---|
| date | Tue, 24 Jul 2012 10:51:00 -0700 |
| parents | 7588156f5cf9 |
| children | 5a98bf7d847b |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved. |
| 0 | 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 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 25 package sun.jvm.hotspot.code; | |
| 26 | |
| 27 import java.io.*; | |
| 28 import java.util.*; | |
| 29 | |
| 30 import sun.jvm.hotspot.asm.x86.*; | |
| 31 import sun.jvm.hotspot.compiler.*; | |
| 32 import sun.jvm.hotspot.debugger.*; | |
| 33 import sun.jvm.hotspot.runtime.*; | |
| 34 import sun.jvm.hotspot.types.*; | |
| 35 import sun.jvm.hotspot.utilities.*; | |
| 36 | |
| 37 public class CodeBlob extends VMObject { | |
| 38 private static AddressField nameField; | |
| 39 private static CIntegerField sizeField; | |
| 40 private static CIntegerField headerSizeField; | |
| 41 private static CIntegerField relocationSizeField; | |
| 1748 | 42 private static CIntegerField contentOffsetField; |
| 43 private static CIntegerField codeOffsetField; | |
| 0 | 44 private static CIntegerField frameCompleteOffsetField; |
| 45 private static CIntegerField dataOffsetField; | |
| 46 private static CIntegerField frameSizeField; | |
| 47 private static AddressField oopMapsField; | |
| 48 | |
| 49 // Only used by server compiler on x86; computed over in SA rather | |
| 50 // than relying on computation in target VM | |
| 51 private static final int NOT_YET_COMPUTED = -2; | |
| 52 private static final int UNDEFINED = -1; | |
| 53 private int linkOffset = NOT_YET_COMPUTED; | |
| 54 private static int matcherInterpreterFramePointerReg; | |
| 55 | |
| 56 static { | |
| 57 VM.registerVMInitializedObserver(new Observer() { | |
| 58 public void update(Observable o, Object data) { | |
| 59 initialize(VM.getVM().getTypeDataBase()); | |
| 60 } | |
| 61 }); | |
| 62 } | |
| 63 | |
| 64 private static void initialize(TypeDataBase db) { | |
| 65 Type type = db.lookupType("CodeBlob"); | |
| 66 | |
| 67 nameField = type.getAddressField("_name"); | |
| 68 sizeField = type.getCIntegerField("_size"); | |
| 69 headerSizeField = type.getCIntegerField("_header_size"); | |
| 70 relocationSizeField = type.getCIntegerField("_relocation_size"); | |
| 71 frameCompleteOffsetField = type.getCIntegerField("_frame_complete_offset"); | |
| 1748 | 72 contentOffsetField = type.getCIntegerField("_content_offset"); |
| 73 codeOffsetField = type.getCIntegerField("_code_offset"); | |
| 0 | 74 dataOffsetField = type.getCIntegerField("_data_offset"); |
| 75 frameSizeField = type.getCIntegerField("_frame_size"); | |
| 76 oopMapsField = type.getAddressField("_oop_maps"); | |
| 77 | |
| 78 if (VM.getVM().isServerCompiler()) { | |
| 79 matcherInterpreterFramePointerReg = | |
| 80 db.lookupIntConstant("Matcher::interpreter_frame_pointer_reg").intValue(); | |
| 81 } | |
| 82 } | |
| 83 | |
| 84 public CodeBlob(Address addr) { | |
| 85 super(addr); | |
| 86 } | |
| 87 | |
| 88 // Typing | |
| 89 public boolean isBufferBlob() { return false; } | |
| 90 public boolean isNMethod() { return false; } | |
| 91 public boolean isRuntimeStub() { return false; } | |
| 92 public boolean isDeoptimizationStub() { return false; } | |
| 93 public boolean isUncommonTrapStub() { return false; } | |
| 94 public boolean isExceptionStub() { return false; } | |
| 95 public boolean isSafepointStub() { return false; } | |
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96 public boolean isAdapterBlob() { return false; } |
| 0 | 97 |
| 98 // Fine grain nmethod support: isNmethod() == isJavaMethod() || isNativeMethod() || isOSRMethod() | |
| 99 public boolean isJavaMethod() { return false; } | |
| 100 public boolean isNativeMethod() { return false; } | |
| 101 /** On-Stack Replacement method */ | |
| 102 public boolean isOSRMethod() { return false; } | |
| 103 | |
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104 public NMethod asNMethodOrNull() { |
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105 if (isNMethod()) return (NMethod)this; |
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106 return null; |
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107 } |
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108 |
| 0 | 109 // Boundaries |
| 110 public Address headerBegin() { | |
| 111 return addr; | |
| 112 } | |
| 113 | |
| 114 public Address headerEnd() { | |
| 115 return addr.addOffsetTo(headerSizeField.getValue(addr)); | |
| 116 } | |
| 117 | |
| 118 // FIXME: add RelocInfo | |
| 119 // public RelocInfo relocationBegin(); | |
| 120 // public RelocInfo relocationEnd(); | |
| 121 | |
| 1748 | 122 public Address contentBegin() { |
| 123 return headerBegin().addOffsetTo(contentOffsetField.getValue(addr)); | |
| 0 | 124 } |
| 125 | |
| 1748 | 126 public Address contentEnd() { |
| 127 return headerBegin().addOffsetTo(dataOffsetField.getValue(addr)); | |
| 128 } | |
| 129 | |
| 130 public Address codeBegin() { | |
| 131 return headerBegin().addOffsetTo(contentOffsetField.getValue(addr)); | |
| 132 } | |
| 133 | |
| 134 public Address codeEnd() { | |
| 0 | 135 return headerBegin().addOffsetTo(dataOffsetField.getValue(addr)); |
| 136 } | |
| 137 | |
| 138 public Address dataBegin() { | |
| 139 return headerBegin().addOffsetTo(dataOffsetField.getValue(addr)); | |
| 140 } | |
| 141 | |
| 142 public Address dataEnd() { | |
| 143 return headerBegin().addOffsetTo(sizeField.getValue(addr)); | |
| 144 } | |
| 145 | |
| 146 // Offsets | |
| 1748 | 147 public int getRelocationOffset() { return (int) headerSizeField .getValue(addr); } |
| 148 public int getContentOffset() { return (int) contentOffsetField.getValue(addr); } | |
| 149 public int getCodeOffset() { return (int) codeOffsetField .getValue(addr); } | |
| 150 public int getDataOffset() { return (int) dataOffsetField .getValue(addr); } | |
| 0 | 151 |
| 152 // Sizes | |
| 1748 | 153 public int getSize() { return (int) sizeField .getValue(addr); } |
| 154 public int getHeaderSize() { return (int) headerSizeField.getValue(addr); } | |
| 0 | 155 // FIXME: add getRelocationSize() |
| 1748 | 156 public int getContentSize() { return (int) contentEnd().minus(contentBegin()); } |
| 157 public int getCodeSize() { return (int) codeEnd() .minus(codeBegin()); } | |
| 158 public int getDataSize() { return (int) dataEnd() .minus(dataBegin()); } | |
| 0 | 159 |
| 160 // Containment | |
| 1748 | 161 public boolean blobContains(Address addr) { return headerBegin() .lessThanOrEqual(addr) && dataEnd() .greaterThan(addr); } |
| 0 | 162 // FIXME: add relocationContains |
| 1748 | 163 public boolean contentContains(Address addr) { return contentBegin().lessThanOrEqual(addr) && contentEnd().greaterThan(addr); } |
| 164 public boolean codeContains(Address addr) { return codeBegin() .lessThanOrEqual(addr) && codeEnd() .greaterThan(addr); } | |
| 165 public boolean dataContains(Address addr) { return dataBegin() .lessThanOrEqual(addr) && dataEnd() .greaterThan(addr); } | |
| 166 public boolean contains(Address addr) { return contentContains(addr); } | |
| 167 public boolean isFrameCompleteAt(Address a) { return codeContains(a) && a.minus(codeBegin()) >= frameCompleteOffsetField.getValue(addr); } | |
| 0 | 168 |
| 169 // Reclamation support (really only used by the nmethods, but in order to get asserts to work | |
| 170 // in the CodeCache they are defined virtual here) | |
| 171 public boolean isZombie() { return false; } | |
| 172 public boolean isLockedByVM() { return false; } | |
| 173 | |
| 174 /** OopMap for frame; can return null if none available */ | |
| 175 public OopMapSet getOopMaps() { | |
| 176 Address oopMapsAddr = oopMapsField.getValue(addr); | |
| 177 if (oopMapsAddr == null) { | |
| 178 return null; | |
| 179 } | |
| 180 return new OopMapSet(oopMapsAddr); | |
| 181 } | |
| 182 // FIXME: not yet implementable | |
| 183 // void set_oop_maps(OopMapSet* p); | |
| 184 | |
| 185 public OopMap getOopMapForReturnAddress(Address returnAddress, boolean debugging) { | |
| 186 Address pc = returnAddress; | |
| 187 if (Assert.ASSERTS_ENABLED) { | |
| 188 Assert.that(getOopMaps() != null, "nope"); | |
| 189 } | |
| 1748 | 190 return getOopMaps().findMapAtOffset(pc.minus(codeBegin()), debugging); |
| 0 | 191 } |
| 192 | |
| 193 // virtual void preserve_callee_argument_oops(frame fr, const RegisterMap* reg_map, void f(oop*)) { ShouldNotReachHere(); } | |
| 194 // FIXME; | |
| 195 | |
| 196 /** NOTE: this returns a size in BYTES in this system! */ | |
| 197 public long getFrameSize() { | |
| 198 return VM.getVM().getAddressSize() * frameSizeField.getValue(addr); | |
| 199 } | |
| 200 | |
| 201 // Returns true, if the next frame is responsible for GC'ing oops passed as arguments | |
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202 public boolean callerMustGCArguments() { return false; } |
| 0 | 203 |
| 204 public String getName() { | |
| 205 return CStringUtilities.getString(nameField.getValue(addr)); | |
| 206 } | |
| 207 | |
| 208 // FIXME: NOT FINISHED | |
| 209 | |
| 210 // FIXME: add more accessors | |
| 211 | |
| 212 public void print() { | |
| 213 printOn(System.out); | |
| 214 } | |
| 215 | |
| 216 public void printOn(PrintStream tty) { | |
| 217 tty.print(getName()); | |
| 218 printComponentsOn(tty); | |
| 219 } | |
| 220 | |
| 221 protected void printComponentsOn(PrintStream tty) { | |
| 1748 | 222 tty.println(" content: [" + contentBegin() + ", " + contentEnd() + "), " + |
| 223 " code: [" + codeBegin() + ", " + codeEnd() + "), " + | |
| 0 | 224 " data: [" + dataBegin() + ", " + dataEnd() + "), " + |
| 225 " frame size: " + getFrameSize()); | |
| 226 } | |
| 227 } |