Mercurial > hg > graal-compiler
annotate agent/src/share/classes/sun/jvm/hotspot/code/NMethod.java @ 10197:7b23cb975cf2
8011675: adding compilation level to replay data
Reviewed-by: kvn, vlivanov
| author | iignatyev |
|---|---|
| date | Thu, 25 Apr 2013 11:09:24 -0700 |
| parents | bd7a7ce2e264 |
| children | de6a9e811145 |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 2000, 2012, 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 import sun.jvm.hotspot.debugger.*; | |
| 30 import sun.jvm.hotspot.memory.*; | |
| 31 import sun.jvm.hotspot.oops.*; | |
| 32 import sun.jvm.hotspot.runtime.*; | |
| 33 import sun.jvm.hotspot.types.*; | |
| 34 import sun.jvm.hotspot.utilities.*; | |
| 35 | |
| 36 public class NMethod extends CodeBlob { | |
| 37 private static long pcDescSize; | |
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38 private static AddressField methodField; |
| 0 | 39 /** != InvocationEntryBci if this nmethod is an on-stack replacement method */ |
| 40 private static CIntegerField entryBCIField; | |
| 41 /** To support simple linked-list chaining of nmethods */ | |
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42 private static AddressField osrLinkField; |
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43 private static AddressField scavengeRootLinkField; |
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44 private static JByteField scavengeRootStateField; |
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45 |
| 0 | 46 /** Offsets for different nmethod parts */ |
| 47 private static CIntegerField exceptionOffsetField; | |
| 48 private static CIntegerField deoptOffsetField; | |
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49 private static CIntegerField deoptMhOffsetField; |
| 0 | 50 private static CIntegerField origPCOffsetField; |
| 51 private static CIntegerField stubOffsetField; | |
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52 private static CIntegerField oopsOffsetField; |
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53 private static CIntegerField metadataOffsetField; |
| 0 | 54 private static CIntegerField scopesDataOffsetField; |
| 55 private static CIntegerField scopesPCsOffsetField; | |
| 56 private static CIntegerField dependenciesOffsetField; | |
| 57 private static CIntegerField handlerTableOffsetField; | |
| 58 private static CIntegerField nulChkTableOffsetField; | |
| 59 private static CIntegerField nmethodEndOffsetField; | |
| 60 | |
| 61 /** Offsets for entry points */ | |
| 62 /** Entry point with class check */ | |
| 63 private static AddressField entryPointField; | |
| 64 /** Entry point without class check */ | |
| 65 private static AddressField verifiedEntryPointField; | |
| 66 /** Entry point for on stack replacement */ | |
| 67 private static AddressField osrEntryPointField; | |
| 68 | |
| 69 // FIXME: add access to flags (how?) | |
| 70 | |
| 71 /** NMethod Flushing lock (if non-zero, then the nmethod is not removed) */ | |
| 72 private static JIntField lockCountField; | |
| 73 | |
| 74 /** not_entrant method removal. Each mark_sweep pass will update | |
| 75 this mark to current sweep invocation count if it is seen on the | |
| 76 stack. An not_entrant method can be removed when there is no | |
| 77 more activations, i.e., when the _stack_traversal_mark is less than | |
| 78 current sweep traversal index. */ | |
| 79 private static CIntegerField stackTraversalMarkField; | |
| 80 | |
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81 private static CIntegerField compLevelField; |
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82 |
| 0 | 83 static { |
| 84 VM.registerVMInitializedObserver(new Observer() { | |
| 85 public void update(Observable o, Object data) { | |
| 86 initialize(VM.getVM().getTypeDataBase()); | |
| 87 } | |
| 88 }); | |
| 89 } | |
| 90 | |
| 91 private static void initialize(TypeDataBase db) { | |
| 92 Type type = db.lookupType("nmethod"); | |
| 93 | |
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94 methodField = type.getAddressField("_method"); |
| 0 | 95 entryBCIField = type.getCIntegerField("_entry_bci"); |
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96 osrLinkField = type.getAddressField("_osr_link"); |
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97 scavengeRootLinkField = type.getAddressField("_scavenge_root_link"); |
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98 scavengeRootStateField = type.getJByteField("_scavenge_root_state"); |
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99 |
| 0 | 100 exceptionOffsetField = type.getCIntegerField("_exception_offset"); |
| 101 deoptOffsetField = type.getCIntegerField("_deoptimize_offset"); | |
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102 deoptMhOffsetField = type.getCIntegerField("_deoptimize_mh_offset"); |
| 0 | 103 origPCOffsetField = type.getCIntegerField("_orig_pc_offset"); |
| 104 stubOffsetField = type.getCIntegerField("_stub_offset"); | |
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105 oopsOffsetField = type.getCIntegerField("_oops_offset"); |
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106 metadataOffsetField = type.getCIntegerField("_metadata_offset"); |
| 0 | 107 scopesDataOffsetField = type.getCIntegerField("_scopes_data_offset"); |
| 108 scopesPCsOffsetField = type.getCIntegerField("_scopes_pcs_offset"); | |
| 109 dependenciesOffsetField = type.getCIntegerField("_dependencies_offset"); | |
| 110 handlerTableOffsetField = type.getCIntegerField("_handler_table_offset"); | |
| 111 nulChkTableOffsetField = type.getCIntegerField("_nul_chk_table_offset"); | |
| 112 nmethodEndOffsetField = type.getCIntegerField("_nmethod_end_offset"); | |
| 113 entryPointField = type.getAddressField("_entry_point"); | |
| 114 verifiedEntryPointField = type.getAddressField("_verified_entry_point"); | |
| 115 osrEntryPointField = type.getAddressField("_osr_entry_point"); | |
| 116 lockCountField = type.getJIntField("_lock_count"); | |
| 117 stackTraversalMarkField = type.getCIntegerField("_stack_traversal_mark"); | |
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118 compLevelField = type.getCIntegerField("_comp_level"); |
| 0 | 119 pcDescSize = db.lookupType("PcDesc").getSize(); |
| 120 } | |
| 121 | |
| 122 public NMethod(Address addr) { | |
| 123 super(addr); | |
| 124 } | |
| 125 | |
| 126 | |
| 127 // Accessors | |
| 128 public Address getAddress() { | |
| 129 return addr; | |
| 130 } | |
| 131 | |
| 132 public Method getMethod() { | |
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133 return (Method)Metadata.instantiateWrapperFor(methodField.getValue(addr)); |
| 0 | 134 } |
| 135 | |
| 136 // Type info | |
| 137 public boolean isNMethod() { return true; } | |
| 138 public boolean isJavaMethod() { return !getMethod().isNative(); } | |
| 139 public boolean isNativeMethod() { return getMethod().isNative(); } | |
| 140 public boolean isOSRMethod() { return getEntryBCI() != VM.getVM().getInvocationEntryBCI(); } | |
| 141 | |
| 142 /** Boundaries for different parts */ | |
| 1748 | 143 public Address constantsBegin() { return contentBegin(); } |
| 0 | 144 public Address constantsEnd() { return getEntryPoint(); } |
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145 public Address instsBegin() { return codeBegin(); } |
| 1748 | 146 public Address instsEnd() { return headerBegin().addOffsetTo(getStubOffset()); } |
| 0 | 147 public Address exceptionBegin() { return headerBegin().addOffsetTo(getExceptionOffset()); } |
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148 public Address deoptHandlerBegin() { return headerBegin().addOffsetTo(getDeoptOffset()); } |
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149 public Address deoptMhHandlerBegin() { return headerBegin().addOffsetTo(getDeoptMhOffset()); } |
| 0 | 150 public Address stubBegin() { return headerBegin().addOffsetTo(getStubOffset()); } |
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151 public Address stubEnd() { return headerBegin().addOffsetTo(getOopsOffset()); } |
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152 public Address oopsBegin() { return headerBegin().addOffsetTo(getOopsOffset()); } |
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153 public Address oopsEnd() { return headerBegin().addOffsetTo(getMetadataOffset()); } |
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154 public Address metadataBegin() { return headerBegin().addOffsetTo(getMetadataOffset()); } |
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155 public Address metadataEnd() { return headerBegin().addOffsetTo(getScopesDataOffset()); } |
| 0 | 156 public Address scopesDataBegin() { return headerBegin().addOffsetTo(getScopesDataOffset()); } |
| 157 public Address scopesDataEnd() { return headerBegin().addOffsetTo(getScopesPCsOffset()); } | |
| 158 public Address scopesPCsBegin() { return headerBegin().addOffsetTo(getScopesPCsOffset()); } | |
| 159 public Address scopesPCsEnd() { return headerBegin().addOffsetTo(getDependenciesOffset()); } | |
| 160 public Address dependenciesBegin() { return headerBegin().addOffsetTo(getDependenciesOffset()); } | |
| 161 public Address dependenciesEnd() { return headerBegin().addOffsetTo(getHandlerTableOffset()); } | |
| 162 public Address handlerTableBegin() { return headerBegin().addOffsetTo(getHandlerTableOffset()); } | |
| 163 public Address handlerTableEnd() { return headerBegin().addOffsetTo(getNulChkTableOffset()); } | |
| 164 public Address nulChkTableBegin() { return headerBegin().addOffsetTo(getNulChkTableOffset()); } | |
| 165 public Address nulChkTableEnd() { return headerBegin().addOffsetTo(getNMethodEndOffset()); } | |
| 166 | |
| 167 public int constantsSize() { return (int) constantsEnd() .minus(constantsBegin()); } | |
| 1748 | 168 public int instsSize() { return (int) instsEnd() .minus(instsBegin()); } |
| 0 | 169 public int stubSize() { return (int) stubEnd() .minus(stubBegin()); } |
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170 public int oopsSize() { return (int) oopsEnd() .minus(oopsBegin()); } |
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171 public int metadataSize() { return (int) metadataEnd() .minus(metadataBegin()); } |
| 0 | 172 public int scopesDataSize() { return (int) scopesDataEnd() .minus(scopesDataBegin()); } |
| 173 public int scopesPCsSize() { return (int) scopesPCsEnd() .minus(scopesPCsBegin()); } | |
| 174 public int dependenciesSize() { return (int) dependenciesEnd().minus(dependenciesBegin()); } | |
| 175 public int handlerTableSize() { return (int) handlerTableEnd().minus(handlerTableBegin()); } | |
| 176 public int nulChkTableSize() { return (int) nulChkTableEnd() .minus(nulChkTableBegin()); } | |
| 177 public int origPCOffset() { return (int) origPCOffsetField.getValue(addr); } | |
| 178 | |
| 179 public int totalSize() { | |
| 180 return | |
| 181 constantsSize() + | |
| 1748 | 182 instsSize() + |
| 0 | 183 stubSize() + |
| 184 scopesDataSize() + | |
| 185 scopesPCsSize() + | |
| 186 dependenciesSize() + | |
| 187 handlerTableSize() + | |
| 188 nulChkTableSize(); | |
| 189 } | |
| 190 | |
| 191 public boolean constantsContains (Address addr) { return constantsBegin() .lessThanOrEqual(addr) && constantsEnd() .greaterThan(addr); } | |
| 1748 | 192 public boolean instsContains (Address addr) { return instsBegin() .lessThanOrEqual(addr) && instsEnd() .greaterThan(addr); } |
| 0 | 193 public boolean stubContains (Address addr) { return stubBegin() .lessThanOrEqual(addr) && stubEnd() .greaterThan(addr); } |
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194 public boolean oopsContains (Address addr) { return oopsBegin() .lessThanOrEqual(addr) && oopsEnd() .greaterThan(addr); } |
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195 public boolean metadataContains (Address addr) { return metadataBegin() .lessThanOrEqual(addr) && metadataEnd() .greaterThan(addr); } |
| 0 | 196 public boolean scopesDataContains (Address addr) { return scopesDataBegin() .lessThanOrEqual(addr) && scopesDataEnd() .greaterThan(addr); } |
| 197 public boolean scopesPCsContains (Address addr) { return scopesPCsBegin() .lessThanOrEqual(addr) && scopesPCsEnd() .greaterThan(addr); } | |
| 198 public boolean handlerTableContains(Address addr) { return handlerTableBegin().lessThanOrEqual(addr) && handlerTableEnd().greaterThan(addr); } | |
| 199 public boolean nulChkTableContains (Address addr) { return nulChkTableBegin() .lessThanOrEqual(addr) && nulChkTableEnd() .greaterThan(addr); } | |
| 200 | |
| 3939 | 201 public int getOopsLength() { return (int) (oopsSize() / VM.getVM().getOopSize()); } |
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202 public int getMetadataLength() { return (int) (metadataSize() / VM.getVM().getOopSize()); } |
| 3939 | 203 |
| 0 | 204 /** Entry points */ |
| 205 public Address getEntryPoint() { return entryPointField.getValue(addr); } | |
| 206 public Address getVerifiedEntryPoint() { return verifiedEntryPointField.getValue(addr); } | |
| 207 | |
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208 /** Support for oops in scopes and relocs. Note: index 0 is reserved for null. */ |
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209 public OopHandle getOopAt(int index) { |
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210 if (index == 0) return null; |
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211 if (Assert.ASSERTS_ENABLED) { |
| 3939 | 212 Assert.that(index > 0 && index <= getOopsLength(), "must be a valid non-zero index"); |
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213 } |
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214 return oopsBegin().getOopHandleAt((index - 1) * VM.getVM().getOopSize()); |
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215 } |
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216 |
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217 /** Support for metadata in scopes and relocs. Note: index 0 is reserved for null. */ |
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218 public Address getMetadataAt(int index) { |
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219 if (index == 0) return null; |
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220 if (Assert.ASSERTS_ENABLED) { |
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221 Assert.that(index > 0 && index <= getMetadataLength(), "must be a valid non-zero index"); |
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222 } |
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223 return metadataBegin().getAddressAt((index - 1) * VM.getVM().getOopSize()); |
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224 } |
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225 |
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226 public Method getMethodAt(int index) { |
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227 return (Method)Metadata.instantiateWrapperFor(getMetadataAt(index)); |
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228 } |
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229 |
| 0 | 230 // FIXME: add interpreter_entry_point() |
| 231 // FIXME: add lazy_interpreter_entry_point() for C2 | |
| 232 | |
| 233 // ********** | |
| 234 // * FIXME: * ADD ACCESS TO FLAGS!!!! | |
| 235 // ********** | |
| 236 // public boolean isInUse(); | |
| 237 // public boolean isAlive(); | |
| 238 // public boolean isNotEntrant(); | |
| 239 // public boolean isZombie(); | |
| 240 | |
| 241 // ******************************** | |
| 242 // * MAJOR FIXME: MAJOR HACK HERE * | |
| 243 // ******************************** | |
| 244 public boolean isZombie() { return false; } | |
| 245 | |
| 246 // public boolean isUnloaded(); | |
| 247 // public boolean isYoung(); | |
| 248 // public boolean isOld(); | |
| 249 // public int age(); | |
| 250 // public boolean isMarkedForDeoptimization(); | |
| 251 // public boolean isMarkedForUnloading(); | |
| 252 // public boolean isMarkedForReclamation(); | |
| 253 // public int level(); | |
| 254 // public int version(); | |
| 255 | |
| 256 // FIXME: add mutators for above | |
| 257 // FIXME: add exception cache access? | |
| 258 | |
| 259 /** On-stack replacement support */ | |
| 260 // FIXME: add mutators | |
| 261 public int getOSREntryBCI() { | |
| 262 if (Assert.ASSERTS_ENABLED) { | |
| 263 Assert.that(getEntryBCI() != VM.getVM().getInvocationEntryBCI(), "wrong kind of nmethod"); | |
| 264 } | |
| 265 return getEntryBCI(); | |
| 266 } | |
| 267 | |
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268 public NMethod getOSRLink() { |
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269 return (NMethod) VMObjectFactory.newObject(NMethod.class, osrLinkField.getValue(addr)); |
| 0 | 270 } |
| 271 | |
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272 public NMethod getScavengeRootLink() { |
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273 return (NMethod) VMObjectFactory.newObject(NMethod.class, scavengeRootLinkField.getValue(addr)); |
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274 } |
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275 |
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276 public int getScavengeRootState() { |
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277 return (int) scavengeRootStateField.getValue(addr); |
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278 } |
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279 |
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280 // MethodHandle |
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281 public boolean isMethodHandleReturn(Address returnPc) { |
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282 // Hard to read a bit fields from Java and it's only there for performance |
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283 // so just go directly to the PCDesc |
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284 // if (!hasMethodHandleInvokes()) return false; |
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285 PCDesc pd = getPCDescAt(returnPc); |
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286 if (pd == null) |
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287 return false; |
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288 return pd.isMethodHandleInvoke(); |
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289 } |
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290 |
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291 // Deopt |
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292 // Return true is the PC is one would expect if the frame is being deopted. |
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293 public boolean isDeoptPc (Address pc) { return isDeoptEntry(pc) || isDeoptMhEntry(pc); } |
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294 public boolean isDeoptEntry (Address pc) { return pc == deoptHandlerBegin(); } |
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295 public boolean isDeoptMhEntry (Address pc) { return pc == deoptMhHandlerBegin(); } |
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296 |
| 0 | 297 /** Tells whether frames described by this nmethod can be |
| 298 deoptimized. Note: native wrappers cannot be deoptimized. */ | |
| 299 public boolean canBeDeoptimized() { return isJavaMethod(); } | |
| 300 | |
| 301 // FIXME: add inline cache support | |
| 302 // FIXME: add flush() | |
| 303 | |
| 304 public boolean isLockedByVM() { return lockCountField.getValue(addr) > 0; } | |
| 305 | |
| 306 // FIXME: add mark_as_seen_on_stack | |
| 307 // FIXME: add can_not_entrant_be_converted | |
| 308 | |
| 309 // FIXME: add GC support | |
| 310 // void follow_roots_or_mark_for_unloading(bool unloading_occurred, bool& marked_for_unloading); | |
| 311 // void follow_root_or_mark_for_unloading(oop* root, bool unloading_occurred, bool& marked_for_unloading); | |
| 312 // void preserve_callee_argument_oops(frame fr, const RegisterMap *reg_map, void f(oop*)); | |
| 313 // void adjust_pointers(); | |
| 314 | |
| 315 /** Finds a PCDesc with real-pc equal to "pc" */ | |
| 316 public PCDesc getPCDescAt(Address pc) { | |
| 317 // FIXME: consider adding cache like the one down in the VM | |
| 318 for (Address p = scopesPCsBegin(); p.lessThan(scopesPCsEnd()); p = p.addOffsetTo(pcDescSize)) { | |
| 319 PCDesc pcDesc = new PCDesc(p); | |
| 320 if (pcDesc.getRealPC(this).equals(pc)) { | |
| 321 return pcDesc; | |
| 322 } | |
| 323 } | |
| 324 return null; | |
| 325 } | |
| 326 | |
| 327 /** ScopeDesc for an instruction */ | |
| 328 public ScopeDesc getScopeDescAt(Address pc) { | |
| 329 PCDesc pd = getPCDescAt(pc); | |
| 330 if (Assert.ASSERTS_ENABLED) { | |
| 331 Assert.that(pd != null, "scope must be present"); | |
| 332 } | |
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333 return new ScopeDesc(this, pd.getScopeDecodeOffset(), pd.getObjDecodeOffset(), pd.getReexecute()); |
| 0 | 334 } |
| 335 | |
| 336 /** This is only for use by the debugging system, and is only | |
| 337 intended for use in the topmost frame, where we are not | |
| 338 guaranteed to be at a PC for which we have a PCDesc. It finds | |
| 339 the PCDesc with realPC closest to the current PC. */ | |
| 340 public PCDesc getPCDescNearDbg(Address pc) { | |
| 341 PCDesc bestGuessPCDesc = null; | |
| 342 long bestDistance = 0; | |
| 343 for (Address p = scopesPCsBegin(); p.lessThan(scopesPCsEnd()); p = p.addOffsetTo(pcDescSize)) { | |
| 344 PCDesc pcDesc = new PCDesc(p); | |
| 345 // In case pc is null | |
| 346 long distance = -pcDesc.getRealPC(this).minus(pc); | |
| 347 if ((bestGuessPCDesc == null) || | |
| 348 ((distance >= 0) && (distance < bestDistance))) { | |
| 349 bestGuessPCDesc = pcDesc; | |
| 350 bestDistance = distance; | |
| 351 } | |
| 352 } | |
| 353 return bestGuessPCDesc; | |
| 354 } | |
| 355 | |
| 6782 | 356 PCDesc find_pc_desc(long pc, boolean approximate) { |
| 357 return find_pc_desc_internal(pc, approximate); | |
| 358 } | |
| 359 | |
| 360 // Finds a PcDesc with real-pc equal to "pc" | |
| 361 PCDesc find_pc_desc_internal(long pc, boolean approximate) { | |
| 362 long base_address = VM.getAddressValue(codeBegin()); | |
| 363 int pc_offset = (int) (pc - base_address); | |
| 364 | |
| 365 // Fallback algorithm: quasi-linear search for the PcDesc | |
| 366 // Find the last pc_offset less than the given offset. | |
| 367 // The successor must be the required match, if there is a match at all. | |
| 368 // (Use a fixed radix to avoid expensive affine pointer arithmetic.) | |
| 369 Address lower = scopesPCsBegin(); | |
| 370 Address upper = scopesPCsEnd(); | |
| 371 upper = upper.addOffsetTo(-pcDescSize); // exclude final sentinel | |
| 372 if (lower.greaterThan(upper)) return null; // native method; no PcDescs at all | |
| 373 | |
| 374 // Take giant steps at first (4096, then 256, then 16, then 1) | |
| 375 int LOG2_RADIX = 4; | |
| 376 int RADIX = (1 << LOG2_RADIX); | |
| 377 Address mid; | |
| 378 for (int step = (1 << (LOG2_RADIX*3)); step > 1; step >>= LOG2_RADIX) { | |
| 379 while ((mid = lower.addOffsetTo(step * pcDescSize)).lessThan(upper)) { | |
| 380 PCDesc m = new PCDesc(mid); | |
| 381 if (m.getPCOffset() < pc_offset) { | |
| 382 lower = mid; | |
| 383 } else { | |
| 384 upper = mid; | |
| 385 break; | |
| 386 } | |
| 387 } | |
| 388 } | |
| 389 // Sneak up on the value with a linear search of length ~16. | |
| 390 while (true) { | |
| 391 mid = lower.addOffsetTo(pcDescSize); | |
| 392 PCDesc m = new PCDesc(mid); | |
| 393 if (m.getPCOffset() < pc_offset) { | |
| 394 lower = mid; | |
| 395 } else { | |
| 396 upper = mid; | |
| 397 break; | |
| 398 } | |
| 399 } | |
| 400 | |
| 401 PCDesc u = new PCDesc(upper); | |
| 402 if (match_desc(u, pc_offset, approximate)) { | |
| 403 return u; | |
| 404 } else { | |
| 405 return null; | |
| 406 } | |
| 407 } | |
| 408 | |
| 409 // ScopeDesc retrieval operation | |
| 410 PCDesc pc_desc_at(long pc) { return find_pc_desc(pc, false); } | |
| 411 // pc_desc_near returns the first PCDesc at or after the givne pc. | |
| 412 PCDesc pc_desc_near(long pc) { return find_pc_desc(pc, true); } | |
| 413 | |
| 414 // Return a the last scope in (begin..end] | |
| 415 public ScopeDesc scope_desc_in(long begin, long end) { | |
| 416 PCDesc p = pc_desc_near(begin+1); | |
| 417 if (p != null && VM.getAddressValue(p.getRealPC(this)) <= end) { | |
| 418 return new ScopeDesc(this, p.getScopeDecodeOffset(), p.getObjDecodeOffset(), p.getReexecute()); | |
| 419 } | |
| 420 return null; | |
| 421 } | |
| 422 | |
| 423 static boolean match_desc(PCDesc pc, int pc_offset, boolean approximate) { | |
| 424 if (!approximate) { | |
| 425 return pc.getPCOffset() == pc_offset; | |
| 426 } else { | |
| 427 PCDesc prev = new PCDesc(pc.getAddress().addOffsetTo(-pcDescSize)); | |
| 428 return prev.getPCOffset() < pc_offset && pc_offset <= pc.getPCOffset(); | |
| 429 } | |
| 430 } | |
| 431 | |
| 0 | 432 /** This is only for use by the debugging system, and is only |
| 433 intended for use in the topmost frame, where we are not | |
| 434 guaranteed to be at a PC for which we have a PCDesc. It finds | |
| 435 the ScopeDesc closest to the current PC. NOTE that this may | |
| 436 return NULL for compiled methods which don't have any | |
| 437 ScopeDescs! */ | |
| 438 public ScopeDesc getScopeDescNearDbg(Address pc) { | |
| 439 PCDesc pd = getPCDescNearDbg(pc); | |
| 440 if (pd == null) return null; | |
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441 return new ScopeDesc(this, pd.getScopeDecodeOffset(), pd.getObjDecodeOffset(), pd.getReexecute()); |
| 0 | 442 } |
| 443 | |
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444 public Map/*<Address, PCDesc>*/ getSafepoints() { |
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445 Map safepoints = new HashMap(); // Map<Address, PCDesc> |
| 0 | 446 sun.jvm.hotspot.debugger.Address p = null; |
| 447 for (p = scopesPCsBegin(); p.lessThan(scopesPCsEnd()); | |
| 448 p = p.addOffsetTo(pcDescSize)) { | |
| 449 PCDesc pcDesc = new PCDesc(p); | |
| 450 sun.jvm.hotspot.debugger.Address pc = pcDesc.getRealPC(this); | |
| 451 safepoints.put(pc, pcDesc); | |
| 452 } | |
| 453 return safepoints; | |
| 454 } | |
| 455 | |
| 456 // FIXME: add getPCOffsetForBCI() | |
| 457 // FIXME: add embeddedOopAt() | |
| 458 // FIXME: add isDependentOn() | |
| 459 // FIXME: add isPatchableAt() | |
| 460 | |
| 461 /** Support for code generation. Only here for proof-of-concept. */ | |
| 462 public static int getEntryPointOffset() { return (int) entryPointField.getOffset(); } | |
| 463 public static int getVerifiedEntryPointOffset() { return (int) verifiedEntryPointField.getOffset(); } | |
| 464 public static int getOSREntryPointOffset() { return (int) osrEntryPointField.getOffset(); } | |
| 465 public static int getEntryBCIOffset() { return (int) entryBCIField.getOffset(); } | |
| 466 /** NOTE: renamed from "method_offset_in_bytes" */ | |
| 467 public static int getMethodOffset() { return (int) methodField.getOffset(); } | |
| 468 | |
| 469 public void print() { | |
| 470 printOn(System.out); | |
| 471 } | |
| 472 | |
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473 protected void printComponentsOn(PrintStream tty) { |
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474 // FIXME: add relocation information |
| 1748 | 475 tty.println(" content: [" + contentBegin() + ", " + contentEnd() + "), " + |
| 476 " code: [" + codeBegin() + ", " + codeEnd() + "), " + | |
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477 " data: [" + dataBegin() + ", " + dataEnd() + "), " + |
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478 " oops: [" + oopsBegin() + ", " + oopsEnd() + "), " + |
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479 " frame size: " + getFrameSize()); |
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480 } |
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481 |
| 0 | 482 public String toString() { |
| 483 Method method = getMethod(); | |
| 484 return "NMethod for " + | |
| 485 method.getMethodHolder().getName().asString() + "." + | |
| 486 method.getName().asString() + method.getSignature().asString() + "==>n" + | |
| 487 super.toString(); | |
| 488 } | |
| 489 | |
| 490 public String flagsToString() { | |
| 491 // FIXME need access to flags... | |
| 492 return ""; | |
| 493 } | |
| 494 | |
| 495 public String getName() { | |
| 496 Method method = getMethod(); | |
| 497 return "NMethod for " + | |
| 498 method.getMethodHolder().getName().asString() + "." + | |
| 499 method.getName().asString() + | |
| 500 method.getSignature().asString(); | |
| 501 } | |
| 502 | |
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503 public void dumpReplayData(PrintStream out) { |
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504 HashMap h = new HashMap(); |
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505 for (int i = 1; i < getMetadataLength(); i++) { |
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506 Metadata meta = Metadata.instantiateWrapperFor(getMetadataAt(i)); |
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507 System.err.println(meta); |
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508 if (h.get(meta) != null) continue; |
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509 h.put(meta, meta); |
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510 if (meta instanceof InstanceKlass) { |
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511 ((InstanceKlass)meta).dumpReplayData(out); |
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512 } else if (meta instanceof Method) { |
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513 ((Method)meta).dumpReplayData(out); |
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514 MethodData mdo = ((Method)meta).getMethodData(); |
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515 if (mdo != null) { |
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516 mdo.dumpReplayData(out); |
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517 } |
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518 } |
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519 } |
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520 Method method = getMethod(); |
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521 if (h.get(method) == null) { |
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522 method.dumpReplayData(out); |
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523 MethodData mdo = method.getMethodData(); |
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524 if (mdo != null) { |
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525 mdo.dumpReplayData(out); |
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526 } |
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527 } |
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528 if (h.get(method.getMethodHolder()) == null) { |
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529 ((InstanceKlass)method.getMethodHolder()).dumpReplayData(out); |
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530 } |
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531 Klass holder = method.getMethodHolder(); |
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532 out.println("compile " + holder.getName().asString() + " " + |
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533 OopUtilities.escapeString(method.getName().asString()) + " " + |
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534 method.getSignature().asString() + " " + |
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535 getEntryBCI() + " " + getCompLevel()); |
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536 |
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537 } |
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538 |
| 0 | 539 //-------------------------------------------------------------------------------- |
| 540 // Internals only below this point | |
| 541 // | |
| 542 | |
| 543 private int getEntryBCI() { return (int) entryBCIField .getValue(addr); } | |
| 544 private int getExceptionOffset() { return (int) exceptionOffsetField .getValue(addr); } | |
| 545 private int getDeoptOffset() { return (int) deoptOffsetField .getValue(addr); } | |
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546 private int getDeoptMhOffset() { return (int) deoptMhOffsetField .getValue(addr); } |
| 0 | 547 private int getStubOffset() { return (int) stubOffsetField .getValue(addr); } |
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1563
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1040
diff
changeset
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548 private int getOopsOffset() { return (int) oopsOffsetField .getValue(addr); } |
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6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
3939
diff
changeset
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549 private int getMetadataOffset() { return (int) metadataOffsetField .getValue(addr); } |
| 0 | 550 private int getScopesDataOffset() { return (int) scopesDataOffsetField .getValue(addr); } |
| 551 private int getScopesPCsOffset() { return (int) scopesPCsOffsetField .getValue(addr); } | |
| 552 private int getDependenciesOffset() { return (int) dependenciesOffsetField.getValue(addr); } | |
| 553 private int getHandlerTableOffset() { return (int) handlerTableOffsetField.getValue(addr); } | |
| 554 private int getNulChkTableOffset() { return (int) nulChkTableOffsetField .getValue(addr); } | |
| 555 private int getNMethodEndOffset() { return (int) nmethodEndOffsetField .getValue(addr); } | |
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10197
7b23cb975cf2
8011675: adding compilation level to replay data
iignatyev
parents:
6972
diff
changeset
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556 private int getCompLevel() { return (int) compLevelField .getValue(addr); } |
| 0 | 557 } |