Mercurial > hg > truffle
annotate agent/src/share/classes/sun/jvm/hotspot/debugger/remote/RemoteDebuggerClient.java @ 17524:89152779163c
Merge with jdk8-b132
| author | Gilles Duboscq <duboscq@ssw.jku.at> |
|---|---|
| date | Wed, 15 Oct 2014 11:59:32 +0200 |
| parents | 8e47bac5643a |
| children |
| rev | line source |
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| 0 | 1 /* |
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2 * Copyright (c) 2002, 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.debugger.remote; | |
| 26 | |
| 27 import java.rmi.*; | |
| 28 import java.util.*; | |
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29 import java.lang.reflect.*; |
| 0 | 30 |
| 31 import sun.jvm.hotspot.debugger.*; | |
| 32 import sun.jvm.hotspot.debugger.cdbg.*; | |
| 33 import sun.jvm.hotspot.debugger.remote.sparc.*; | |
| 34 import sun.jvm.hotspot.debugger.remote.x86.*; | |
| 35 import sun.jvm.hotspot.debugger.remote.amd64.*; | |
| 36 | |
| 37 /** An implementation of Debugger which wraps a | |
| 38 RemoteDebugger, providing remote debugging via RMI. | |
| 39 This implementation provides caching of the remote process's | |
| 40 address space on the local machine where the user interface is | |
| 41 running. */ | |
| 42 | |
| 43 public class RemoteDebuggerClient extends DebuggerBase implements JVMDebugger { | |
| 44 private RemoteDebugger remoteDebugger; | |
| 45 private RemoteThreadFactory threadFactory; | |
| 46 private boolean unalignedAccessesOkay = false; | |
| 47 private static final int cacheSize = 16 * 1024 * 1024; // 16 MB | |
| 48 | |
| 49 public RemoteDebuggerClient(RemoteDebugger remoteDebugger) throws DebuggerException { | |
| 50 super(); | |
| 51 try { | |
| 52 this.remoteDebugger = remoteDebugger; | |
| 53 machDesc = remoteDebugger.getMachineDescription(); | |
| 54 utils = new DebuggerUtilities(machDesc.getAddressSize(), machDesc.isBigEndian()); | |
| 55 int cacheNumPages; | |
| 56 int cachePageSize; | |
| 57 String cpu = remoteDebugger.getCPU(); | |
| 58 // page size. (FIXME: should pick this up from the remoteDebugger.) | |
| 59 if (cpu.equals("sparc")) { | |
| 60 threadFactory = new RemoteSPARCThreadFactory(this); | |
| 61 cachePageSize = 8192; | |
| 62 cacheNumPages = parseCacheNumPagesProperty(cacheSize / cachePageSize); | |
| 63 } else if (cpu.equals("x86")) { | |
| 64 threadFactory = new RemoteX86ThreadFactory(this); | |
| 65 cachePageSize = 4096; | |
| 66 cacheNumPages = parseCacheNumPagesProperty(cacheSize / cachePageSize); | |
| 67 unalignedAccessesOkay = true; | |
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68 } else if (cpu.equals("amd64") || cpu.equals("x86_64")) { |
| 0 | 69 threadFactory = new RemoteAMD64ThreadFactory(this); |
| 70 cachePageSize = 4096; | |
| 71 cacheNumPages = parseCacheNumPagesProperty(cacheSize / cachePageSize); | |
| 72 unalignedAccessesOkay = true; | |
| 73 } else { | |
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74 try { |
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75 Class tf = Class.forName("sun.jvm.hotspot.debugger.remote." + |
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76 cpu.toLowerCase() + ".Remote" + cpu.toUpperCase() + |
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77 "ThreadFactory"); |
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78 Constructor[] ctf = tf.getConstructors(); |
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79 threadFactory = (RemoteThreadFactory)ctf[0].newInstance(this); |
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80 } catch (Exception e) { |
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81 throw new DebuggerException("Thread access for CPU architecture " + cpu + " not yet supported"); |
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82 } |
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83 cachePageSize = 4096; |
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84 cacheNumPages = parseCacheNumPagesProperty(cacheSize / cachePageSize); |
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85 unalignedAccessesOkay = false; |
| 0 | 86 } |
| 87 | |
| 88 // Cache portion of the remote process's address space. | |
| 89 initCache(cachePageSize, cacheNumPages); | |
| 90 | |
| 91 jbooleanSize = remoteDebugger.getJBooleanSize(); | |
| 92 jbyteSize = remoteDebugger.getJByteSize(); | |
| 93 jcharSize = remoteDebugger.getJCharSize(); | |
| 94 jdoubleSize = remoteDebugger.getJDoubleSize(); | |
| 95 jfloatSize = remoteDebugger.getJFloatSize(); | |
| 96 jintSize = remoteDebugger.getJIntSize(); | |
| 97 jlongSize = remoteDebugger.getJLongSize(); | |
| 98 jshortSize = remoteDebugger.getJShortSize(); | |
| 99 javaPrimitiveTypesConfigured = true; | |
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100 narrowOopBase = remoteDebugger.getNarrowOopBase(); |
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101 narrowOopShift = remoteDebugger.getNarrowOopShift(); |
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102 narrowKlassBase = remoteDebugger.getNarrowKlassBase(); |
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103 narrowKlassShift = remoteDebugger.getNarrowKlassShift(); |
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104 heapOopSize = remoteDebugger.getHeapOopSize(); |
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105 klassPtrSize = remoteDebugger.getKlassPtrSize(); |
| 0 | 106 } |
| 107 catch (RemoteException e) { | |
| 108 throw new DebuggerException(e); | |
| 109 } | |
| 110 } | |
| 111 | |
| 112 public long[] getThreadIntegerRegisterSet(Address addr) { | |
| 113 try { | |
| 114 return remoteDebugger.getThreadIntegerRegisterSet(getAddressValue(addr), true); | |
| 115 } | |
| 116 catch (RemoteException e) { | |
| 117 throw new DebuggerException(e); | |
| 118 } | |
| 119 } | |
| 120 | |
| 121 public long[] getThreadIntegerRegisterSet(long id) { | |
| 122 try { | |
| 123 return remoteDebugger.getThreadIntegerRegisterSet(id, false); | |
| 124 } | |
| 125 catch (RemoteException e) { | |
| 126 throw new DebuggerException(e); | |
| 127 } | |
| 128 } | |
| 129 | |
| 130 /** Unimplemented in this class (remote remoteDebugger should already be attached) */ | |
| 131 public boolean hasProcessList() throws DebuggerException { | |
| 132 throw new DebuggerException("Should not be called on RemoteDebuggerClient"); | |
| 133 } | |
| 134 | |
| 135 /** Unimplemented in this class (remote remoteDebugger should already be attached) */ | |
| 136 public List getProcessList() throws DebuggerException { | |
| 137 throw new DebuggerException("Should not be called on RemoteDebuggerClient"); | |
| 138 } | |
| 139 | |
| 140 /** Unimplemented in this class (remote remoteDebugger should already be attached) */ | |
| 141 public void attach(int processID) throws DebuggerException { | |
| 142 throw new DebuggerException("Should not be called on RemoteDebuggerClient"); | |
| 143 } | |
| 144 | |
| 145 /** Unimplemented in this class (remote remoteDebugger should already be attached) */ | |
| 146 public void attach(String executableName, String coreFileName) throws DebuggerException { | |
| 147 throw new DebuggerException("Should not be called on RemoteDebuggerClient"); | |
| 148 } | |
| 149 | |
| 150 /** Unimplemented in this class (remote remoteDebugger can not be detached) */ | |
| 151 public boolean detach() { | |
| 152 throw new DebuggerException("Should not be called on RemoteDebuggerClient"); | |
| 153 } | |
| 154 | |
| 155 public Address parseAddress(String addressString) throws NumberFormatException { | |
| 156 long addr = utils.scanAddress(addressString); | |
| 157 if (addr == 0) { | |
| 158 return null; | |
| 159 } | |
| 160 return new RemoteAddress(this, addr); | |
| 161 } | |
| 162 | |
| 163 public String getOS() throws DebuggerException { | |
| 164 try { | |
| 165 return remoteDebugger.getOS(); | |
| 166 } | |
| 167 catch (RemoteException e) { | |
| 168 throw new DebuggerException(e); | |
| 169 } | |
| 170 } | |
| 171 | |
| 172 public String getCPU() { | |
| 173 try { | |
| 174 return remoteDebugger.getCPU(); | |
| 175 } | |
| 176 catch (RemoteException e) { | |
| 177 throw new DebuggerException(e); | |
| 178 } | |
| 179 } | |
| 180 | |
| 181 public boolean hasConsole() throws DebuggerException { | |
| 182 try { | |
| 183 return remoteDebugger.hasConsole(); | |
| 184 } catch (RemoteException e) { | |
| 185 throw new DebuggerException(e); | |
| 186 } | |
| 187 } | |
| 188 | |
| 189 public String consoleExecuteCommand(String cmd) throws DebuggerException { | |
| 190 try { | |
| 191 return remoteDebugger.consoleExecuteCommand(cmd); | |
| 192 } | |
| 193 catch (RemoteException e) { | |
| 194 throw new DebuggerException(e); | |
| 195 } | |
| 196 } | |
| 197 | |
| 198 public String getConsolePrompt() throws DebuggerException { | |
| 199 try { | |
| 200 return remoteDebugger.getConsolePrompt(); | |
| 201 } catch (RemoteException e) { | |
| 202 throw new DebuggerException(e); | |
| 203 } | |
| 204 } | |
| 205 | |
| 206 public CDebugger getCDebugger() throws DebuggerException { | |
| 207 return null; | |
| 208 } | |
| 209 | |
| 210 //-------------------------------------------------------------------------------- | |
| 211 // Implementation of SymbolLookup interface | |
| 212 | |
| 213 public Address lookup(String objectName, String symbol) { | |
| 214 try { | |
| 215 long addr = remoteDebugger.lookupInProcess(objectName, symbol); | |
| 216 if (addr == 0) { | |
| 217 return null; | |
| 218 } | |
| 219 return new RemoteAddress(this, addr); | |
| 220 } | |
| 221 catch (RemoteException e) { | |
| 222 throw new DebuggerException(e); | |
| 223 } | |
| 224 } | |
| 225 | |
| 226 public OopHandle lookupOop(String objectName, String symbol) { | |
| 227 try { | |
| 228 long addr = remoteDebugger.lookupInProcess(objectName, symbol); | |
| 229 if (addr == 0) { | |
| 230 return null; | |
| 231 } | |
| 232 return new RemoteOopHandle(this, addr); | |
| 233 } | |
| 234 catch (RemoteException e) { | |
| 235 throw new DebuggerException(e); | |
| 236 } | |
| 237 } | |
| 238 | |
| 239 /** Need to override this to relax alignment checks on x86. */ | |
| 240 public long readCInteger(long address, long numBytes, boolean isUnsigned) | |
| 241 throws UnmappedAddressException, UnalignedAddressException { | |
| 242 if (!unalignedAccessesOkay) { | |
| 243 utils.checkAlignment(address, numBytes); | |
| 244 } else { | |
| 245 // Only slightly relaxed semantics -- this is a hack, but is | |
| 246 // necessary on x86 where it seems the compiler is | |
| 247 // putting some global 64-bit data on 32-bit boundaries | |
| 248 if (numBytes == 8) { | |
| 249 utils.checkAlignment(address, 4); | |
| 250 } else { | |
| 251 utils.checkAlignment(address, numBytes); | |
| 252 } | |
| 253 } | |
| 254 byte[] data = readBytes(address, numBytes); | |
| 255 return utils.dataToCInteger(data, isUnsigned); | |
| 256 } | |
| 257 | |
| 258 // Overridden from DebuggerBase because we need to relax alignment | |
| 259 // constraints on x86 | |
| 260 public long readJLong(long address) | |
| 261 throws UnmappedAddressException, UnalignedAddressException { | |
| 262 // FIXME: allow this to be configurable. Undesirable to add a | |
| 263 // dependency on the runtime package here, though, since this | |
| 264 // package should be strictly underneath it. | |
| 265 if (unalignedAccessesOkay) { | |
| 266 utils.checkAlignment(address, jintSize); | |
| 267 } else { | |
| 268 utils.checkAlignment(address, jlongSize); | |
| 269 } | |
| 270 byte[] data = readBytes(address, jlongSize); | |
| 271 return utils.dataToJLong(data, jlongSize); | |
| 272 } | |
| 273 | |
| 274 | |
| 275 //-------------------------------------------------------------------------------- | |
| 276 // Implementation of JVMDebugger interface | |
| 277 // | |
| 278 | |
| 279 /** Unimplemented in this class (remote remoteDebugger should already be configured) */ | |
| 280 public void configureJavaPrimitiveTypeSizes(long jbooleanSize, | |
| 281 long jbyteSize, | |
| 282 long jcharSize, | |
| 283 long jdoubleSize, | |
| 284 long jfloatSize, | |
| 285 long jintSize, | |
| 286 long jlongSize, | |
| 287 long jshortSize) { | |
| 288 throw new DebuggerException("Should not be called on RemoteDebuggerClient"); | |
| 289 } | |
| 290 | |
| 291 public void setMachineDescription(MachineDescription machDesc) { | |
| 292 throw new DebuggerException("Should not be called on RemoteDebuggerClient"); | |
| 293 } | |
| 294 | |
| 295 public int getRemoteProcessAddressSize() { | |
| 296 throw new DebuggerException("Should not be called on RemoteDebuggerClient"); | |
| 297 } | |
| 298 | |
| 299 public String addressValueToString(long addr) { | |
| 300 return utils.addressValueToString(addr); | |
| 301 } | |
| 302 | |
| 303 public long getAddressValue(Address addr) throws DebuggerException { | |
| 304 if (addr == null) return 0; | |
| 305 return ((RemoteAddress) addr).getValue(); | |
| 306 } | |
| 307 | |
| 308 public Address newAddress(long value) { | |
| 309 if (value == 0) return null; | |
| 310 return new RemoteAddress(this, value); | |
| 311 } | |
| 312 | |
| 313 RemoteAddress readAddress(long address) | |
| 314 throws UnmappedAddressException, UnalignedAddressException { | |
| 315 long value = readAddressValue(address); | |
| 316 return (value == 0 ? null : new RemoteAddress(this, value)); | |
| 317 } | |
| 318 | |
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319 RemoteAddress readCompOopAddress(long address) |
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320 throws UnmappedAddressException, UnalignedAddressException { |
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321 long value = readCompOopAddressValue(address); |
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322 return (value == 0 ? null : new RemoteAddress(this, value)); |
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323 } |
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324 |
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325 RemoteAddress readCompKlassAddress(long address) |
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326 throws UnmappedAddressException, UnalignedAddressException { |
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327 long value = readCompKlassAddressValue(address); |
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328 return (value == 0 ? null : new RemoteAddress(this, value)); |
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329 } |
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330 |
| 0 | 331 RemoteOopHandle readOopHandle(long address) |
| 332 throws UnmappedAddressException, UnalignedAddressException, NotInHeapException { | |
| 333 long value = readAddressValue(address); | |
| 334 return (value == 0 ? null : new RemoteOopHandle(this, value)); | |
| 335 } | |
| 336 | |
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337 RemoteOopHandle readCompOopHandle(long address) |
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338 throws UnmappedAddressException, UnalignedAddressException, NotInHeapException { |
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339 long value = readCompOopAddressValue(address); |
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340 return (value == 0 ? null : new RemoteOopHandle(this, value)); |
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341 } |
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342 |
| 0 | 343 boolean areThreadsEqual(Address addr1, Address addr2) { |
| 344 try { | |
| 345 return remoteDebugger.areThreadsEqual(getAddressValue(addr1), true, | |
| 346 getAddressValue(addr2), true); | |
| 347 } catch (RemoteException e) { | |
| 348 } | |
| 349 return false; | |
| 350 } | |
| 351 | |
| 352 boolean areThreadsEqual(long id1, long id2) { | |
| 353 try { | |
| 354 return remoteDebugger.areThreadsEqual(id1, false, id2, false); | |
| 355 } catch (RemoteException e) { | |
| 356 } | |
| 357 return false; | |
| 358 } | |
| 359 | |
| 360 boolean areThreadsEqual(Address addr1, long id2) { | |
| 361 try { | |
| 362 return remoteDebugger.areThreadsEqual(getAddressValue(addr1), true, id2, false); | |
| 363 } catch (RemoteException e) { | |
| 364 } | |
| 365 return false; | |
| 366 } | |
| 367 | |
| 368 boolean areThreadsEqual(long id1, Address addr2) { | |
| 369 try { | |
| 370 return remoteDebugger.areThreadsEqual(id1, false, getAddressValue(addr2), true); | |
| 371 } catch (RemoteException e) { | |
| 372 } | |
| 373 return false; | |
| 374 } | |
| 375 | |
| 376 int getThreadHashCode(Address a) { | |
| 377 try { | |
| 378 return remoteDebugger.getThreadHashCode(getAddressValue(a), true); | |
| 379 } catch (RemoteException e) { | |
| 380 } | |
| 381 return a.hashCode(); | |
| 382 } | |
| 383 | |
| 384 int getThreadHashCode(long id) { | |
| 385 try { | |
| 386 return remoteDebugger.getThreadHashCode(id, false); | |
| 387 } catch (RemoteException e) { | |
| 388 } | |
| 389 return (int) id; | |
| 390 } | |
| 391 | |
| 392 public ThreadProxy getThreadForIdentifierAddress(Address addr) { | |
| 393 return threadFactory.createThreadWrapper(addr); | |
| 394 } | |
| 395 | |
| 396 public ThreadProxy getThreadForThreadId(long id) { | |
| 397 return threadFactory.createThreadWrapper(id); | |
| 398 } | |
| 399 | |
| 400 public MachineDescription getMachineDescription() throws DebuggerException { | |
| 401 return machDesc; | |
| 402 } | |
| 403 | |
| 404 /** This reads bytes from the remote process. */ | |
| 405 public ReadResult readBytesFromProcess(long address, long numBytes) { | |
| 406 try { | |
| 407 return remoteDebugger.readBytesFromProcess(address, numBytes); | |
| 408 } | |
| 409 catch (RemoteException e) { | |
| 410 throw new DebuggerException(e); | |
| 411 } | |
| 412 } | |
| 413 | |
| 414 public void writeBytesToProcess(long a, long b, byte[] c) { | |
| 415 throw new DebuggerException("Unimplemented!"); | |
| 416 } | |
| 417 } |