Mercurial > hg > truffle
annotate agent/src/share/classes/sun/jvm/hotspot/code/NMethod.java @ 6725:da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
Summary: Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes
Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland
Contributed-by: jmasa <jon.masamitsu@oracle.com>, stefank <stefan.karlsson@oracle.com>, mgerdin <mikael.gerdin@oracle.com>, never <tom.rodriguez@oracle.com>
| author | coleenp |
|---|---|
| date | Sat, 01 Sep 2012 13:25:18 -0400 |
| parents | f6f3bb0ee072 |
| children | 5a98bf7d847b |
| 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 | |
| 81 static { | |
| 82 VM.registerVMInitializedObserver(new Observer() { | |
| 83 public void update(Observable o, Object data) { | |
| 84 initialize(VM.getVM().getTypeDataBase()); | |
| 85 } | |
| 86 }); | |
| 87 } | |
| 88 | |
| 89 private static void initialize(TypeDataBase db) { | |
| 90 Type type = db.lookupType("nmethod"); | |
| 91 | |
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92 methodField = type.getAddressField("_method"); |
| 0 | 93 entryBCIField = type.getCIntegerField("_entry_bci"); |
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94 osrLinkField = type.getAddressField("_osr_link"); |
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95 scavengeRootLinkField = type.getAddressField("_scavenge_root_link"); |
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96 scavengeRootStateField = type.getJByteField("_scavenge_root_state"); |
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97 |
| 0 | 98 exceptionOffsetField = type.getCIntegerField("_exception_offset"); |
| 99 deoptOffsetField = type.getCIntegerField("_deoptimize_offset"); | |
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100 deoptMhOffsetField = type.getCIntegerField("_deoptimize_mh_offset"); |
| 0 | 101 origPCOffsetField = type.getCIntegerField("_orig_pc_offset"); |
| 102 stubOffsetField = type.getCIntegerField("_stub_offset"); | |
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103 oopsOffsetField = type.getCIntegerField("_oops_offset"); |
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104 metadataOffsetField = type.getCIntegerField("_metadata_offset"); |
| 0 | 105 scopesDataOffsetField = type.getCIntegerField("_scopes_data_offset"); |
| 106 scopesPCsOffsetField = type.getCIntegerField("_scopes_pcs_offset"); | |
| 107 dependenciesOffsetField = type.getCIntegerField("_dependencies_offset"); | |
| 108 handlerTableOffsetField = type.getCIntegerField("_handler_table_offset"); | |
| 109 nulChkTableOffsetField = type.getCIntegerField("_nul_chk_table_offset"); | |
| 110 nmethodEndOffsetField = type.getCIntegerField("_nmethod_end_offset"); | |
| 111 entryPointField = type.getAddressField("_entry_point"); | |
| 112 verifiedEntryPointField = type.getAddressField("_verified_entry_point"); | |
| 113 osrEntryPointField = type.getAddressField("_osr_entry_point"); | |
| 114 lockCountField = type.getJIntField("_lock_count"); | |
| 115 stackTraversalMarkField = type.getCIntegerField("_stack_traversal_mark"); | |
| 116 | |
| 117 pcDescSize = db.lookupType("PcDesc").getSize(); | |
| 118 } | |
| 119 | |
| 120 public NMethod(Address addr) { | |
| 121 super(addr); | |
| 122 } | |
| 123 | |
| 124 | |
| 125 // Accessors | |
| 126 public Address getAddress() { | |
| 127 return addr; | |
| 128 } | |
| 129 | |
| 130 public Method getMethod() { | |
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131 return (Method)Metadata.instantiateWrapperFor(methodField.getValue(addr)); |
| 0 | 132 } |
| 133 | |
| 134 // Type info | |
| 135 public boolean isNMethod() { return true; } | |
| 136 public boolean isJavaMethod() { return !getMethod().isNative(); } | |
| 137 public boolean isNativeMethod() { return getMethod().isNative(); } | |
| 138 public boolean isOSRMethod() { return getEntryBCI() != VM.getVM().getInvocationEntryBCI(); } | |
| 139 | |
| 140 /** Boundaries for different parts */ | |
| 1748 | 141 public Address constantsBegin() { return contentBegin(); } |
| 0 | 142 public Address constantsEnd() { return getEntryPoint(); } |
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143 public Address instsBegin() { return codeBegin(); } |
| 1748 | 144 public Address instsEnd() { return headerBegin().addOffsetTo(getStubOffset()); } |
| 0 | 145 public Address exceptionBegin() { return headerBegin().addOffsetTo(getExceptionOffset()); } |
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146 public Address deoptHandlerBegin() { return headerBegin().addOffsetTo(getDeoptOffset()); } |
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147 public Address deoptMhHandlerBegin() { return headerBegin().addOffsetTo(getDeoptMhOffset()); } |
| 0 | 148 public Address stubBegin() { return headerBegin().addOffsetTo(getStubOffset()); } |
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149 public Address stubEnd() { return headerBegin().addOffsetTo(getOopsOffset()); } |
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150 public Address oopsBegin() { return headerBegin().addOffsetTo(getOopsOffset()); } |
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151 public Address oopsEnd() { return headerBegin().addOffsetTo(getMetadataOffset()); } |
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152 public Address metadataBegin() { return headerBegin().addOffsetTo(getMetadataOffset()); } |
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153 public Address metadataEnd() { return headerBegin().addOffsetTo(getScopesDataOffset()); } |
| 0 | 154 public Address scopesDataBegin() { return headerBegin().addOffsetTo(getScopesDataOffset()); } |
| 155 public Address scopesDataEnd() { return headerBegin().addOffsetTo(getScopesPCsOffset()); } | |
| 156 public Address scopesPCsBegin() { return headerBegin().addOffsetTo(getScopesPCsOffset()); } | |
| 157 public Address scopesPCsEnd() { return headerBegin().addOffsetTo(getDependenciesOffset()); } | |
| 158 public Address dependenciesBegin() { return headerBegin().addOffsetTo(getDependenciesOffset()); } | |
| 159 public Address dependenciesEnd() { return headerBegin().addOffsetTo(getHandlerTableOffset()); } | |
| 160 public Address handlerTableBegin() { return headerBegin().addOffsetTo(getHandlerTableOffset()); } | |
| 161 public Address handlerTableEnd() { return headerBegin().addOffsetTo(getNulChkTableOffset()); } | |
| 162 public Address nulChkTableBegin() { return headerBegin().addOffsetTo(getNulChkTableOffset()); } | |
| 163 public Address nulChkTableEnd() { return headerBegin().addOffsetTo(getNMethodEndOffset()); } | |
| 164 | |
| 165 public int constantsSize() { return (int) constantsEnd() .minus(constantsBegin()); } | |
| 1748 | 166 public int instsSize() { return (int) instsEnd() .minus(instsBegin()); } |
| 0 | 167 public int stubSize() { return (int) stubEnd() .minus(stubBegin()); } |
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168 public int oopsSize() { return (int) oopsEnd() .minus(oopsBegin()); } |
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169 public int metadataSize() { return (int) metadataEnd() .minus(metadataBegin()); } |
| 0 | 170 public int scopesDataSize() { return (int) scopesDataEnd() .minus(scopesDataBegin()); } |
| 171 public int scopesPCsSize() { return (int) scopesPCsEnd() .minus(scopesPCsBegin()); } | |
| 172 public int dependenciesSize() { return (int) dependenciesEnd().minus(dependenciesBegin()); } | |
| 173 public int handlerTableSize() { return (int) handlerTableEnd().minus(handlerTableBegin()); } | |
| 174 public int nulChkTableSize() { return (int) nulChkTableEnd() .minus(nulChkTableBegin()); } | |
| 175 public int origPCOffset() { return (int) origPCOffsetField.getValue(addr); } | |
| 176 | |
| 177 public int totalSize() { | |
| 178 return | |
| 179 constantsSize() + | |
| 1748 | 180 instsSize() + |
| 0 | 181 stubSize() + |
| 182 scopesDataSize() + | |
| 183 scopesPCsSize() + | |
| 184 dependenciesSize() + | |
| 185 handlerTableSize() + | |
| 186 nulChkTableSize(); | |
| 187 } | |
| 188 | |
| 189 public boolean constantsContains (Address addr) { return constantsBegin() .lessThanOrEqual(addr) && constantsEnd() .greaterThan(addr); } | |
| 1748 | 190 public boolean instsContains (Address addr) { return instsBegin() .lessThanOrEqual(addr) && instsEnd() .greaterThan(addr); } |
| 0 | 191 public boolean stubContains (Address addr) { return stubBegin() .lessThanOrEqual(addr) && stubEnd() .greaterThan(addr); } |
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192 public boolean oopsContains (Address addr) { return oopsBegin() .lessThanOrEqual(addr) && oopsEnd() .greaterThan(addr); } |
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193 public boolean metadataContains (Address addr) { return metadataBegin() .lessThanOrEqual(addr) && metadataEnd() .greaterThan(addr); } |
| 0 | 194 public boolean scopesDataContains (Address addr) { return scopesDataBegin() .lessThanOrEqual(addr) && scopesDataEnd() .greaterThan(addr); } |
| 195 public boolean scopesPCsContains (Address addr) { return scopesPCsBegin() .lessThanOrEqual(addr) && scopesPCsEnd() .greaterThan(addr); } | |
| 196 public boolean handlerTableContains(Address addr) { return handlerTableBegin().lessThanOrEqual(addr) && handlerTableEnd().greaterThan(addr); } | |
| 197 public boolean nulChkTableContains (Address addr) { return nulChkTableBegin() .lessThanOrEqual(addr) && nulChkTableEnd() .greaterThan(addr); } | |
| 198 | |
| 3939 | 199 public int getOopsLength() { return (int) (oopsSize() / VM.getVM().getOopSize()); } |
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200 public int getMetadataLength() { return (int) (metadataSize() / VM.getVM().getOopSize()); } |
| 3939 | 201 |
| 0 | 202 /** Entry points */ |
| 203 public Address getEntryPoint() { return entryPointField.getValue(addr); } | |
| 204 public Address getVerifiedEntryPoint() { return verifiedEntryPointField.getValue(addr); } | |
| 205 | |
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206 /** Support for oops in scopes and relocs. Note: index 0 is reserved for null. */ |
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207 public OopHandle getOopAt(int index) { |
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208 if (index == 0) return null; |
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209 if (Assert.ASSERTS_ENABLED) { |
| 3939 | 210 Assert.that(index > 0 && index <= getOopsLength(), "must be a valid non-zero index"); |
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211 } |
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212 return oopsBegin().getOopHandleAt((index - 1) * VM.getVM().getOopSize()); |
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213 } |
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214 |
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215 /** Support for metadata in scopes and relocs. Note: index 0 is reserved for null. */ |
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216 public Address getMetadataAt(int index) { |
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217 if (index == 0) return null; |
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218 if (Assert.ASSERTS_ENABLED) { |
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219 Assert.that(index > 0 && index <= getMetadataLength(), "must be a valid non-zero index"); |
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220 } |
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221 return metadataBegin().getAddressAt((index - 1) * VM.getVM().getOopSize()); |
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222 } |
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223 |
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224 public Method getMethodAt(int index) { |
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225 return (Method)Metadata.instantiateWrapperFor(getMetadataAt(index)); |
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226 } |
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227 |
| 0 | 228 // FIXME: add interpreter_entry_point() |
| 229 // FIXME: add lazy_interpreter_entry_point() for C2 | |
| 230 | |
| 231 // ********** | |
| 232 // * FIXME: * ADD ACCESS TO FLAGS!!!! | |
| 233 // ********** | |
| 234 // public boolean isInUse(); | |
| 235 // public boolean isAlive(); | |
| 236 // public boolean isNotEntrant(); | |
| 237 // public boolean isZombie(); | |
| 238 | |
| 239 // ******************************** | |
| 240 // * MAJOR FIXME: MAJOR HACK HERE * | |
| 241 // ******************************** | |
| 242 public boolean isZombie() { return false; } | |
| 243 | |
| 244 // public boolean isUnloaded(); | |
| 245 // public boolean isYoung(); | |
| 246 // public boolean isOld(); | |
| 247 // public int age(); | |
| 248 // public boolean isMarkedForDeoptimization(); | |
| 249 // public boolean isMarkedForUnloading(); | |
| 250 // public boolean isMarkedForReclamation(); | |
| 251 // public int level(); | |
| 252 // public int version(); | |
| 253 | |
| 254 // FIXME: add mutators for above | |
| 255 // FIXME: add exception cache access? | |
| 256 | |
| 257 /** On-stack replacement support */ | |
| 258 // FIXME: add mutators | |
| 259 public int getOSREntryBCI() { | |
| 260 if (Assert.ASSERTS_ENABLED) { | |
| 261 Assert.that(getEntryBCI() != VM.getVM().getInvocationEntryBCI(), "wrong kind of nmethod"); | |
| 262 } | |
| 263 return getEntryBCI(); | |
| 264 } | |
| 265 | |
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266 public NMethod getOSRLink() { |
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267 return (NMethod) VMObjectFactory.newObject(NMethod.class, osrLinkField.getValue(addr)); |
| 0 | 268 } |
| 269 | |
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270 public NMethod getScavengeRootLink() { |
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271 return (NMethod) VMObjectFactory.newObject(NMethod.class, scavengeRootLinkField.getValue(addr)); |
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272 } |
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273 |
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274 public int getScavengeRootState() { |
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275 return (int) scavengeRootStateField.getValue(addr); |
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276 } |
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277 |
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278 // MethodHandle |
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279 public boolean isMethodHandleReturn(Address returnPc) { |
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280 // Hard to read a bit fields from Java and it's only there for performance |
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281 // so just go directly to the PCDesc |
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282 // if (!hasMethodHandleInvokes()) return false; |
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283 PCDesc pd = getPCDescAt(returnPc); |
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284 if (pd == null) |
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285 return false; |
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286 return pd.isMethodHandleInvoke(); |
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287 } |
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288 |
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289 // Deopt |
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290 // Return true is the PC is one would expect if the frame is being deopted. |
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291 public boolean isDeoptPc (Address pc) { return isDeoptEntry(pc) || isDeoptMhEntry(pc); } |
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292 public boolean isDeoptEntry (Address pc) { return pc == deoptHandlerBegin(); } |
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293 public boolean isDeoptMhEntry (Address pc) { return pc == deoptMhHandlerBegin(); } |
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294 |
| 0 | 295 /** Tells whether frames described by this nmethod can be |
| 296 deoptimized. Note: native wrappers cannot be deoptimized. */ | |
| 297 public boolean canBeDeoptimized() { return isJavaMethod(); } | |
| 298 | |
| 299 // FIXME: add inline cache support | |
| 300 // FIXME: add flush() | |
| 301 | |
| 302 public boolean isLockedByVM() { return lockCountField.getValue(addr) > 0; } | |
| 303 | |
| 304 // FIXME: add mark_as_seen_on_stack | |
| 305 // FIXME: add can_not_entrant_be_converted | |
| 306 | |
| 307 // FIXME: add GC support | |
| 308 // void follow_roots_or_mark_for_unloading(bool unloading_occurred, bool& marked_for_unloading); | |
| 309 // void follow_root_or_mark_for_unloading(oop* root, bool unloading_occurred, bool& marked_for_unloading); | |
| 310 // void preserve_callee_argument_oops(frame fr, const RegisterMap *reg_map, void f(oop*)); | |
| 311 // void adjust_pointers(); | |
| 312 | |
| 313 /** Finds a PCDesc with real-pc equal to "pc" */ | |
| 314 public PCDesc getPCDescAt(Address pc) { | |
| 315 // FIXME: consider adding cache like the one down in the VM | |
| 316 for (Address p = scopesPCsBegin(); p.lessThan(scopesPCsEnd()); p = p.addOffsetTo(pcDescSize)) { | |
| 317 PCDesc pcDesc = new PCDesc(p); | |
| 318 if (pcDesc.getRealPC(this).equals(pc)) { | |
| 319 return pcDesc; | |
| 320 } | |
| 321 } | |
| 322 return null; | |
| 323 } | |
| 324 | |
| 325 /** ScopeDesc for an instruction */ | |
| 326 public ScopeDesc getScopeDescAt(Address pc) { | |
| 327 PCDesc pd = getPCDescAt(pc); | |
| 328 if (Assert.ASSERTS_ENABLED) { | |
| 329 Assert.that(pd != null, "scope must be present"); | |
| 330 } | |
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331 return new ScopeDesc(this, pd.getScopeDecodeOffset(), pd.getObjDecodeOffset(), pd.getReexecute()); |
| 0 | 332 } |
| 333 | |
| 334 /** This is only for use by the debugging system, and is only | |
| 335 intended for use in the topmost frame, where we are not | |
| 336 guaranteed to be at a PC for which we have a PCDesc. It finds | |
| 337 the PCDesc with realPC closest to the current PC. */ | |
| 338 public PCDesc getPCDescNearDbg(Address pc) { | |
| 339 PCDesc bestGuessPCDesc = null; | |
| 340 long bestDistance = 0; | |
| 341 for (Address p = scopesPCsBegin(); p.lessThan(scopesPCsEnd()); p = p.addOffsetTo(pcDescSize)) { | |
| 342 PCDesc pcDesc = new PCDesc(p); | |
| 343 // In case pc is null | |
| 344 long distance = -pcDesc.getRealPC(this).minus(pc); | |
| 345 if ((bestGuessPCDesc == null) || | |
| 346 ((distance >= 0) && (distance < bestDistance))) { | |
| 347 bestGuessPCDesc = pcDesc; | |
| 348 bestDistance = distance; | |
| 349 } | |
| 350 } | |
| 351 return bestGuessPCDesc; | |
| 352 } | |
| 353 | |
| 354 /** This is only for use by the debugging system, and is only | |
| 355 intended for use in the topmost frame, where we are not | |
| 356 guaranteed to be at a PC for which we have a PCDesc. It finds | |
| 357 the ScopeDesc closest to the current PC. NOTE that this may | |
| 358 return NULL for compiled methods which don't have any | |
| 359 ScopeDescs! */ | |
| 360 public ScopeDesc getScopeDescNearDbg(Address pc) { | |
| 361 PCDesc pd = getPCDescNearDbg(pc); | |
| 362 if (pd == null) return null; | |
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363 return new ScopeDesc(this, pd.getScopeDecodeOffset(), pd.getObjDecodeOffset(), pd.getReexecute()); |
| 0 | 364 } |
| 365 | |
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366 public Map/*<Address, PCDesc>*/ getSafepoints() { |
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367 Map safepoints = new HashMap(); // Map<Address, PCDesc> |
| 0 | 368 sun.jvm.hotspot.debugger.Address p = null; |
| 369 for (p = scopesPCsBegin(); p.lessThan(scopesPCsEnd()); | |
| 370 p = p.addOffsetTo(pcDescSize)) { | |
| 371 PCDesc pcDesc = new PCDesc(p); | |
| 372 sun.jvm.hotspot.debugger.Address pc = pcDesc.getRealPC(this); | |
| 373 safepoints.put(pc, pcDesc); | |
| 374 } | |
| 375 return safepoints; | |
| 376 } | |
| 377 | |
| 378 // FIXME: add getPCOffsetForBCI() | |
| 379 // FIXME: add embeddedOopAt() | |
| 380 // FIXME: add isDependentOn() | |
| 381 // FIXME: add isPatchableAt() | |
| 382 | |
| 383 /** Support for code generation. Only here for proof-of-concept. */ | |
| 384 public static int getEntryPointOffset() { return (int) entryPointField.getOffset(); } | |
| 385 public static int getVerifiedEntryPointOffset() { return (int) verifiedEntryPointField.getOffset(); } | |
| 386 public static int getOSREntryPointOffset() { return (int) osrEntryPointField.getOffset(); } | |
| 387 public static int getEntryBCIOffset() { return (int) entryBCIField.getOffset(); } | |
| 388 /** NOTE: renamed from "method_offset_in_bytes" */ | |
| 389 public static int getMethodOffset() { return (int) methodField.getOffset(); } | |
| 390 | |
| 391 public void print() { | |
| 392 printOn(System.out); | |
| 393 } | |
| 394 | |
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395 protected void printComponentsOn(PrintStream tty) { |
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396 // FIXME: add relocation information |
| 1748 | 397 tty.println(" content: [" + contentBegin() + ", " + contentEnd() + "), " + |
| 398 " code: [" + codeBegin() + ", " + codeEnd() + "), " + | |
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399 " data: [" + dataBegin() + ", " + dataEnd() + "), " + |
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400 " oops: [" + oopsBegin() + ", " + oopsEnd() + "), " + |
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401 " frame size: " + getFrameSize()); |
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402 } |
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403 |
| 0 | 404 public String toString() { |
| 405 Method method = getMethod(); | |
| 406 return "NMethod for " + | |
| 407 method.getMethodHolder().getName().asString() + "." + | |
| 408 method.getName().asString() + method.getSignature().asString() + "==>n" + | |
| 409 super.toString(); | |
| 410 } | |
| 411 | |
| 412 public String flagsToString() { | |
| 413 // FIXME need access to flags... | |
| 414 return ""; | |
| 415 } | |
| 416 | |
| 417 public String getName() { | |
| 418 Method method = getMethod(); | |
| 419 return "NMethod for " + | |
| 420 method.getMethodHolder().getName().asString() + "." + | |
| 421 method.getName().asString() + | |
| 422 method.getSignature().asString(); | |
| 423 } | |
| 424 | |
| 425 //-------------------------------------------------------------------------------- | |
| 426 // Internals only below this point | |
| 427 // | |
| 428 | |
| 429 private int getEntryBCI() { return (int) entryBCIField .getValue(addr); } | |
| 430 private int getExceptionOffset() { return (int) exceptionOffsetField .getValue(addr); } | |
| 431 private int getDeoptOffset() { return (int) deoptOffsetField .getValue(addr); } | |
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432 private int getDeoptMhOffset() { return (int) deoptMhOffsetField .getValue(addr); } |
| 0 | 433 private int getStubOffset() { return (int) stubOffsetField .getValue(addr); } |
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434 private int getOopsOffset() { return (int) oopsOffsetField .getValue(addr); } |
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435 private int getMetadataOffset() { return (int) metadataOffsetField .getValue(addr); } |
| 0 | 436 private int getScopesDataOffset() { return (int) scopesDataOffsetField .getValue(addr); } |
| 437 private int getScopesPCsOffset() { return (int) scopesPCsOffsetField .getValue(addr); } | |
| 438 private int getDependenciesOffset() { return (int) dependenciesOffsetField.getValue(addr); } | |
| 439 private int getHandlerTableOffset() { return (int) handlerTableOffsetField.getValue(addr); } | |
| 440 private int getNulChkTableOffset() { return (int) nulChkTableOffsetField .getValue(addr); } | |
| 441 private int getNMethodEndOffset() { return (int) nmethodEndOffsetField .getValue(addr); } | |
| 442 } |