Mercurial > hg > truffle
annotate agent/src/share/classes/sun/jvm/hotspot/debugger/remote/RemoteDebuggerClient.java @ 113:ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
Summary: Compressed oops in instances, arrays, and headers. Code contributors are coleenp, phh, never, swamyv
Reviewed-by: jmasa, kamg, acorn, tbell, kvn, rasbold
| author | coleenp |
|---|---|
| date | Sun, 13 Apr 2008 17:43:42 -0400 |
| parents | a61af66fc99e |
| children | d1605aabd0a1 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 * Copyright 2002-2004 Sun Microsystems, Inc. All Rights Reserved. | |
| 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
| 19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
| 20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
| 21 * have any questions. | |
| 22 * | |
| 23 */ | |
| 24 | |
| 25 package sun.jvm.hotspot.debugger.remote; | |
| 26 | |
| 27 import java.rmi.*; | |
| 28 import java.util.*; | |
| 29 | |
| 30 import sun.jvm.hotspot.debugger.*; | |
| 31 import sun.jvm.hotspot.debugger.cdbg.*; | |
| 32 import sun.jvm.hotspot.debugger.remote.sparc.*; | |
| 33 import sun.jvm.hotspot.debugger.remote.x86.*; | |
| 34 import sun.jvm.hotspot.debugger.remote.amd64.*; | |
| 35 | |
| 36 /** An implementation of Debugger which wraps a | |
| 37 RemoteDebugger, providing remote debugging via RMI. | |
| 38 This implementation provides caching of the remote process's | |
| 39 address space on the local machine where the user interface is | |
| 40 running. */ | |
| 41 | |
| 42 public class RemoteDebuggerClient extends DebuggerBase implements JVMDebugger { | |
| 43 private RemoteDebugger remoteDebugger; | |
| 44 private RemoteThreadFactory threadFactory; | |
| 45 private boolean unalignedAccessesOkay = false; | |
| 46 private static final int cacheSize = 16 * 1024 * 1024; // 16 MB | |
| 47 | |
| 48 public RemoteDebuggerClient(RemoteDebugger remoteDebugger) throws DebuggerException { | |
| 49 super(); | |
| 50 try { | |
| 51 this.remoteDebugger = remoteDebugger; | |
| 52 machDesc = remoteDebugger.getMachineDescription(); | |
| 53 utils = new DebuggerUtilities(machDesc.getAddressSize(), machDesc.isBigEndian()); | |
| 54 int cacheNumPages; | |
| 55 int cachePageSize; | |
| 56 String cpu = remoteDebugger.getCPU(); | |
| 57 // page size. (FIXME: should pick this up from the remoteDebugger.) | |
| 58 if (cpu.equals("sparc")) { | |
| 59 threadFactory = new RemoteSPARCThreadFactory(this); | |
| 60 cachePageSize = 8192; | |
| 61 cacheNumPages = parseCacheNumPagesProperty(cacheSize / cachePageSize); | |
| 62 } else if (cpu.equals("x86")) { | |
| 63 threadFactory = new RemoteX86ThreadFactory(this); | |
| 64 cachePageSize = 4096; | |
| 65 cacheNumPages = parseCacheNumPagesProperty(cacheSize / cachePageSize); | |
| 66 unalignedAccessesOkay = true; | |
| 67 } else if (cpu.equals("amd64")) { | |
| 68 threadFactory = new RemoteAMD64ThreadFactory(this); | |
| 69 cachePageSize = 4096; | |
| 70 cacheNumPages = parseCacheNumPagesProperty(cacheSize / cachePageSize); | |
| 71 unalignedAccessesOkay = true; | |
| 72 } else { | |
| 73 throw new DebuggerException("Thread access for CPU architecture " + cpu + " not yet supported"); | |
| 74 } | |
| 75 | |
| 76 // Cache portion of the remote process's address space. | |
| 77 initCache(cachePageSize, cacheNumPages); | |
| 78 | |
| 79 jbooleanSize = remoteDebugger.getJBooleanSize(); | |
| 80 jbyteSize = remoteDebugger.getJByteSize(); | |
| 81 jcharSize = remoteDebugger.getJCharSize(); | |
| 82 jdoubleSize = remoteDebugger.getJDoubleSize(); | |
| 83 jfloatSize = remoteDebugger.getJFloatSize(); | |
| 84 jintSize = remoteDebugger.getJIntSize(); | |
| 85 jlongSize = remoteDebugger.getJLongSize(); | |
| 86 jshortSize = remoteDebugger.getJShortSize(); | |
| 87 javaPrimitiveTypesConfigured = true; | |
|
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88 heapBase = remoteDebugger.getHeapBase(); |
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89 heapOopSize = remoteDebugger.getHeapOopSize(); |
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6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
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90 logMinObjAlignmentInBytes = remoteDebugger.getLogMinObjAlignmentInBytes(); |
| 0 | 91 } |
| 92 catch (RemoteException e) { | |
| 93 throw new DebuggerException(e); | |
| 94 } | |
| 95 } | |
| 96 | |
| 97 public long[] getThreadIntegerRegisterSet(Address addr) { | |
| 98 try { | |
| 99 return remoteDebugger.getThreadIntegerRegisterSet(getAddressValue(addr), true); | |
| 100 } | |
| 101 catch (RemoteException e) { | |
| 102 throw new DebuggerException(e); | |
| 103 } | |
| 104 } | |
| 105 | |
| 106 public long[] getThreadIntegerRegisterSet(long id) { | |
| 107 try { | |
| 108 return remoteDebugger.getThreadIntegerRegisterSet(id, false); | |
| 109 } | |
| 110 catch (RemoteException e) { | |
| 111 throw new DebuggerException(e); | |
| 112 } | |
| 113 } | |
| 114 | |
| 115 /** Unimplemented in this class (remote remoteDebugger should already be attached) */ | |
| 116 public boolean hasProcessList() throws DebuggerException { | |
| 117 throw new DebuggerException("Should not be called on RemoteDebuggerClient"); | |
| 118 } | |
| 119 | |
| 120 /** Unimplemented in this class (remote remoteDebugger should already be attached) */ | |
| 121 public List getProcessList() throws DebuggerException { | |
| 122 throw new DebuggerException("Should not be called on RemoteDebuggerClient"); | |
| 123 } | |
| 124 | |
| 125 /** Unimplemented in this class (remote remoteDebugger should already be attached) */ | |
| 126 public void attach(int processID) throws DebuggerException { | |
| 127 throw new DebuggerException("Should not be called on RemoteDebuggerClient"); | |
| 128 } | |
| 129 | |
| 130 /** Unimplemented in this class (remote remoteDebugger should already be attached) */ | |
| 131 public void attach(String executableName, String coreFileName) throws DebuggerException { | |
| 132 throw new DebuggerException("Should not be called on RemoteDebuggerClient"); | |
| 133 } | |
| 134 | |
| 135 /** Unimplemented in this class (remote remoteDebugger can not be detached) */ | |
| 136 public boolean detach() { | |
| 137 throw new DebuggerException("Should not be called on RemoteDebuggerClient"); | |
| 138 } | |
| 139 | |
| 140 public Address parseAddress(String addressString) throws NumberFormatException { | |
| 141 long addr = utils.scanAddress(addressString); | |
| 142 if (addr == 0) { | |
| 143 return null; | |
| 144 } | |
| 145 return new RemoteAddress(this, addr); | |
| 146 } | |
| 147 | |
| 148 public String getOS() throws DebuggerException { | |
| 149 try { | |
| 150 return remoteDebugger.getOS(); | |
| 151 } | |
| 152 catch (RemoteException e) { | |
| 153 throw new DebuggerException(e); | |
| 154 } | |
| 155 } | |
| 156 | |
| 157 public String getCPU() { | |
| 158 try { | |
| 159 return remoteDebugger.getCPU(); | |
| 160 } | |
| 161 catch (RemoteException e) { | |
| 162 throw new DebuggerException(e); | |
| 163 } | |
| 164 } | |
| 165 | |
| 166 public boolean hasConsole() throws DebuggerException { | |
| 167 try { | |
| 168 return remoteDebugger.hasConsole(); | |
| 169 } catch (RemoteException e) { | |
| 170 throw new DebuggerException(e); | |
| 171 } | |
| 172 } | |
| 173 | |
| 174 public String consoleExecuteCommand(String cmd) throws DebuggerException { | |
| 175 try { | |
| 176 return remoteDebugger.consoleExecuteCommand(cmd); | |
| 177 } | |
| 178 catch (RemoteException e) { | |
| 179 throw new DebuggerException(e); | |
| 180 } | |
| 181 } | |
| 182 | |
| 183 public String getConsolePrompt() throws DebuggerException { | |
| 184 try { | |
| 185 return remoteDebugger.getConsolePrompt(); | |
| 186 } catch (RemoteException e) { | |
| 187 throw new DebuggerException(e); | |
| 188 } | |
| 189 } | |
| 190 | |
| 191 public CDebugger getCDebugger() throws DebuggerException { | |
| 192 return null; | |
| 193 } | |
| 194 | |
| 195 //-------------------------------------------------------------------------------- | |
| 196 // Implementation of SymbolLookup interface | |
| 197 | |
| 198 public Address lookup(String objectName, String symbol) { | |
| 199 try { | |
| 200 long addr = remoteDebugger.lookupInProcess(objectName, symbol); | |
| 201 if (addr == 0) { | |
| 202 return null; | |
| 203 } | |
| 204 return new RemoteAddress(this, addr); | |
| 205 } | |
| 206 catch (RemoteException e) { | |
| 207 throw new DebuggerException(e); | |
| 208 } | |
| 209 } | |
| 210 | |
| 211 public OopHandle lookupOop(String objectName, String symbol) { | |
| 212 try { | |
| 213 long addr = remoteDebugger.lookupInProcess(objectName, symbol); | |
| 214 if (addr == 0) { | |
| 215 return null; | |
| 216 } | |
| 217 return new RemoteOopHandle(this, addr); | |
| 218 } | |
| 219 catch (RemoteException e) { | |
| 220 throw new DebuggerException(e); | |
| 221 } | |
| 222 } | |
| 223 | |
| 224 /** Need to override this to relax alignment checks on x86. */ | |
| 225 public long readCInteger(long address, long numBytes, boolean isUnsigned) | |
| 226 throws UnmappedAddressException, UnalignedAddressException { | |
| 227 if (!unalignedAccessesOkay) { | |
| 228 utils.checkAlignment(address, numBytes); | |
| 229 } else { | |
| 230 // Only slightly relaxed semantics -- this is a hack, but is | |
| 231 // necessary on x86 where it seems the compiler is | |
| 232 // putting some global 64-bit data on 32-bit boundaries | |
| 233 if (numBytes == 8) { | |
| 234 utils.checkAlignment(address, 4); | |
| 235 } else { | |
| 236 utils.checkAlignment(address, numBytes); | |
| 237 } | |
| 238 } | |
| 239 byte[] data = readBytes(address, numBytes); | |
| 240 return utils.dataToCInteger(data, isUnsigned); | |
| 241 } | |
| 242 | |
| 243 // Overridden from DebuggerBase because we need to relax alignment | |
| 244 // constraints on x86 | |
| 245 public long readJLong(long address) | |
| 246 throws UnmappedAddressException, UnalignedAddressException { | |
| 247 // FIXME: allow this to be configurable. Undesirable to add a | |
| 248 // dependency on the runtime package here, though, since this | |
| 249 // package should be strictly underneath it. | |
| 250 if (unalignedAccessesOkay) { | |
| 251 utils.checkAlignment(address, jintSize); | |
| 252 } else { | |
| 253 utils.checkAlignment(address, jlongSize); | |
| 254 } | |
| 255 byte[] data = readBytes(address, jlongSize); | |
| 256 return utils.dataToJLong(data, jlongSize); | |
| 257 } | |
| 258 | |
| 259 | |
| 260 //-------------------------------------------------------------------------------- | |
| 261 // Implementation of JVMDebugger interface | |
| 262 // | |
| 263 | |
| 264 /** Unimplemented in this class (remote remoteDebugger should already be configured) */ | |
| 265 public void configureJavaPrimitiveTypeSizes(long jbooleanSize, | |
| 266 long jbyteSize, | |
| 267 long jcharSize, | |
| 268 long jdoubleSize, | |
| 269 long jfloatSize, | |
| 270 long jintSize, | |
| 271 long jlongSize, | |
| 272 long jshortSize) { | |
| 273 throw new DebuggerException("Should not be called on RemoteDebuggerClient"); | |
| 274 } | |
| 275 | |
| 276 public void setMachineDescription(MachineDescription machDesc) { | |
| 277 throw new DebuggerException("Should not be called on RemoteDebuggerClient"); | |
| 278 } | |
| 279 | |
| 280 public int getRemoteProcessAddressSize() { | |
| 281 throw new DebuggerException("Should not be called on RemoteDebuggerClient"); | |
| 282 } | |
| 283 | |
| 284 public String addressValueToString(long addr) { | |
| 285 return utils.addressValueToString(addr); | |
| 286 } | |
| 287 | |
| 288 public long getAddressValue(Address addr) throws DebuggerException { | |
| 289 if (addr == null) return 0; | |
| 290 return ((RemoteAddress) addr).getValue(); | |
| 291 } | |
| 292 | |
| 293 public Address newAddress(long value) { | |
| 294 if (value == 0) return null; | |
| 295 return new RemoteAddress(this, value); | |
| 296 } | |
| 297 | |
| 298 RemoteAddress readAddress(long address) | |
| 299 throws UnmappedAddressException, UnalignedAddressException { | |
| 300 long value = readAddressValue(address); | |
| 301 return (value == 0 ? null : new RemoteAddress(this, value)); | |
| 302 } | |
| 303 | |
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304 RemoteAddress readCompOopAddress(long address) |
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ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
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diff
changeset
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305 throws UnmappedAddressException, UnalignedAddressException { |
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ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
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306 long value = readCompOopAddressValue(address); |
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ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
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diff
changeset
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307 return (value == 0 ? null : new RemoteAddress(this, value)); |
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coleenp
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308 } |
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coleenp
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309 |
| 0 | 310 RemoteOopHandle readOopHandle(long address) |
| 311 throws UnmappedAddressException, UnalignedAddressException, NotInHeapException { | |
| 312 long value = readAddressValue(address); | |
| 313 return (value == 0 ? null : new RemoteOopHandle(this, value)); | |
| 314 } | |
| 315 | |
|
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6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
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316 RemoteOopHandle readCompOopHandle(long address) |
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ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
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diff
changeset
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317 throws UnmappedAddressException, UnalignedAddressException, NotInHeapException { |
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ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
0
diff
changeset
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318 long value = readCompOopAddressValue(address); |
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ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
0
diff
changeset
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319 return (value == 0 ? null : new RemoteOopHandle(this, value)); |
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ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
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diff
changeset
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320 } |
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6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
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diff
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321 |
| 0 | 322 boolean areThreadsEqual(Address addr1, Address addr2) { |
| 323 try { | |
| 324 return remoteDebugger.areThreadsEqual(getAddressValue(addr1), true, | |
| 325 getAddressValue(addr2), true); | |
| 326 } catch (RemoteException e) { | |
| 327 } | |
| 328 return false; | |
| 329 } | |
| 330 | |
| 331 boolean areThreadsEqual(long id1, long id2) { | |
| 332 try { | |
| 333 return remoteDebugger.areThreadsEqual(id1, false, id2, false); | |
| 334 } catch (RemoteException e) { | |
| 335 } | |
| 336 return false; | |
| 337 } | |
| 338 | |
| 339 boolean areThreadsEqual(Address addr1, long id2) { | |
| 340 try { | |
| 341 return remoteDebugger.areThreadsEqual(getAddressValue(addr1), true, id2, false); | |
| 342 } catch (RemoteException e) { | |
| 343 } | |
| 344 return false; | |
| 345 } | |
| 346 | |
| 347 boolean areThreadsEqual(long id1, Address addr2) { | |
| 348 try { | |
| 349 return remoteDebugger.areThreadsEqual(id1, false, getAddressValue(addr2), true); | |
| 350 } catch (RemoteException e) { | |
| 351 } | |
| 352 return false; | |
| 353 } | |
| 354 | |
| 355 int getThreadHashCode(Address a) { | |
| 356 try { | |
| 357 return remoteDebugger.getThreadHashCode(getAddressValue(a), true); | |
| 358 } catch (RemoteException e) { | |
| 359 } | |
| 360 return a.hashCode(); | |
| 361 } | |
| 362 | |
| 363 int getThreadHashCode(long id) { | |
| 364 try { | |
| 365 return remoteDebugger.getThreadHashCode(id, false); | |
| 366 } catch (RemoteException e) { | |
| 367 } | |
| 368 return (int) id; | |
| 369 } | |
| 370 | |
| 371 public ThreadProxy getThreadForIdentifierAddress(Address addr) { | |
| 372 return threadFactory.createThreadWrapper(addr); | |
| 373 } | |
| 374 | |
| 375 public ThreadProxy getThreadForThreadId(long id) { | |
| 376 return threadFactory.createThreadWrapper(id); | |
| 377 } | |
| 378 | |
| 379 public MachineDescription getMachineDescription() throws DebuggerException { | |
| 380 return machDesc; | |
| 381 } | |
| 382 | |
| 383 /** This reads bytes from the remote process. */ | |
| 384 public ReadResult readBytesFromProcess(long address, long numBytes) { | |
| 385 try { | |
| 386 return remoteDebugger.readBytesFromProcess(address, numBytes); | |
| 387 } | |
| 388 catch (RemoteException e) { | |
| 389 throw new DebuggerException(e); | |
| 390 } | |
| 391 } | |
| 392 | |
| 393 public void writeBytesToProcess(long a, long b, byte[] c) { | |
| 394 throw new DebuggerException("Unimplemented!"); | |
| 395 } | |
| 396 } |