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annotate agent/src/share/classes/sun/jvm/hotspot/debugger/bsd/BsdDebuggerLocal.java @ 12226:7944aba7ba41
8015107: NPG: Use consistent naming for metaspace concepts
Reviewed-by: coleenp, mgerdin, hseigel
| author | ehelin |
|---|---|
| date | Mon, 12 Aug 2013 17:37:02 +0200 |
| parents | f6a055fcf47d |
| children |
| rev | line source |
|---|---|
| 3960 | 1 /* |
| 8750 | 2 * Copyright (c) 2002, 2013, Oracle and/or its affiliates. All rights reserved. |
| 3960 | 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 20 * or visit www.oracle.com if you need additional information or have any | |
| 21 * questions. | |
| 22 * | |
| 23 */ | |
| 24 | |
| 25 package sun.jvm.hotspot.debugger.bsd; | |
| 26 | |
| 10229 | 27 import java.io.File; |
| 28 import java.util.ArrayList; | |
| 29 import java.util.List; | |
| 30 | |
| 31 import sun.jvm.hotspot.debugger.Address; | |
| 32 import sun.jvm.hotspot.debugger.DebuggerBase; | |
| 33 import sun.jvm.hotspot.debugger.DebuggerException; | |
| 34 import sun.jvm.hotspot.debugger.DebuggerUtilities; | |
| 35 import sun.jvm.hotspot.debugger.MachineDescription; | |
| 36 import sun.jvm.hotspot.debugger.NotInHeapException; | |
| 37 import sun.jvm.hotspot.debugger.OopHandle; | |
| 38 import sun.jvm.hotspot.debugger.ReadResult; | |
| 39 import sun.jvm.hotspot.debugger.ThreadProxy; | |
| 40 import sun.jvm.hotspot.debugger.UnalignedAddressException; | |
| 41 import sun.jvm.hotspot.debugger.UnmappedAddressException; | |
| 42 import sun.jvm.hotspot.debugger.cdbg.CDebugger; | |
| 43 import sun.jvm.hotspot.debugger.cdbg.ClosestSymbol; | |
| 44 import sun.jvm.hotspot.debugger.cdbg.LoadObject; | |
| 45 import sun.jvm.hotspot.runtime.JavaThread; | |
| 46 import sun.jvm.hotspot.runtime.Threads; | |
| 8750 | 47 import sun.jvm.hotspot.runtime.VM; |
| 10229 | 48 import sun.jvm.hotspot.utilities.PlatformInfo; |
| 3960 | 49 |
| 50 /** <P> An implementation of the JVMDebugger interface. The basic debug | |
| 51 facilities are implemented through ptrace interface in the JNI code | |
| 52 (libsaproc.so). Library maps and symbol table management are done in | |
| 53 JNI. </P> | |
| 54 | |
| 55 <P> <B>NOTE</B> that since we have the notion of fetching "Java | |
| 56 primitive types" from the remote process (which might have | |
| 57 different sizes than we expect) we have a bootstrapping | |
| 58 problem. We need to know the sizes of these types before we can | |
| 59 fetch them. The current implementation solves this problem by | |
| 60 requiring that it be configured with these type sizes before they | |
| 61 can be fetched. The readJ(Type) routines here will throw a | |
| 62 RuntimeException if they are called before the debugger is | |
| 63 configured with the Java primitive type sizes. </P> */ | |
| 64 | |
| 65 public class BsdDebuggerLocal extends DebuggerBase implements BsdDebugger { | |
| 66 private boolean useGCC32ABI; | |
| 67 private boolean attached; | |
| 8750 | 68 private long p_ps_prochandle; // native debugger handle |
| 69 private long symbolicator; // macosx symbolicator handle | |
| 70 private long task; // macosx task handle | |
| 3960 | 71 private boolean isCore; |
| 8750 | 72 private boolean isDarwin; // variant for bsd |
| 3960 | 73 |
| 74 // CDebugger support | |
| 75 private BsdCDebugger cdbg; | |
| 76 | |
| 77 // threadList and loadObjectList are filled by attach0 method | |
| 78 private List threadList; | |
| 79 private List loadObjectList; | |
| 80 | |
| 81 // called by native method lookupByAddress0 | |
| 82 private ClosestSymbol createClosestSymbol(String name, long offset) { | |
| 83 return new ClosestSymbol(name, offset); | |
| 84 } | |
| 85 | |
| 86 // called by native method attach0 | |
| 87 private LoadObject createLoadObject(String fileName, long textsize, | |
| 88 long base) { | |
| 89 File f = new File(fileName); | |
| 90 Address baseAddr = newAddress(base); | |
| 91 return new SharedObject(this, fileName, f.length(), baseAddr); | |
| 92 } | |
| 93 | |
| 94 // native methods | |
| 95 | |
| 96 private native static void init0() | |
| 97 throws DebuggerException; | |
| 98 private native void attach0(int pid) | |
| 99 throws DebuggerException; | |
| 100 private native void attach0(String execName, String coreName) | |
| 101 throws DebuggerException; | |
| 102 private native void detach0() | |
| 103 throws DebuggerException; | |
| 104 private native long lookupByName0(String objectName, String symbol) | |
| 105 throws DebuggerException; | |
| 106 private native ClosestSymbol lookupByAddress0(long address) | |
| 107 throws DebuggerException; | |
|
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108 private native long[] getThreadIntegerRegisterSet0(long unique_thread_id) |
| 3960 | 109 throws DebuggerException; |
| 110 private native byte[] readBytesFromProcess0(long address, long numBytes) | |
| 111 throws DebuggerException; | |
| 112 public native static int getAddressSize() ; | |
| 113 | |
| 114 // Note on Bsd threads are really processes. When target process is | |
| 115 // attached by a serviceability agent thread, only that thread can do | |
| 116 // ptrace operations on the target. This is because from kernel's point | |
| 117 // view, other threads are just separate processes and they are not | |
| 118 // attached to the target. When they attempt to make ptrace calls, | |
| 119 // an ESRCH error will be returned as kernel believes target is not | |
| 120 // being traced by the caller. | |
| 121 // To work around the problem, we use a worker thread here to handle | |
| 122 // all JNI functions that are making ptrace calls. | |
| 123 | |
| 124 interface WorkerThreadTask { | |
| 125 public void doit(BsdDebuggerLocal debugger) throws DebuggerException; | |
| 126 } | |
| 127 | |
| 128 class BsdDebuggerLocalWorkerThread extends Thread { | |
| 129 BsdDebuggerLocal debugger; | |
| 130 WorkerThreadTask task; | |
| 131 DebuggerException lastException; | |
| 132 | |
| 133 public BsdDebuggerLocalWorkerThread(BsdDebuggerLocal debugger) { | |
| 134 this.debugger = debugger; | |
| 135 setDaemon(true); | |
| 136 } | |
| 137 | |
| 138 public void run() { | |
| 139 synchronized (workerThread) { | |
| 140 for (;;) { | |
| 141 if (task != null) { | |
| 142 lastException = null; | |
| 143 try { | |
| 144 task.doit(debugger); | |
| 145 } catch (DebuggerException exp) { | |
| 146 lastException = exp; | |
| 147 } | |
| 148 task = null; | |
| 149 workerThread.notifyAll(); | |
| 150 } | |
| 151 | |
| 152 try { | |
| 153 workerThread.wait(); | |
| 154 } catch (InterruptedException x) {} | |
| 155 } | |
| 156 } | |
| 157 } | |
| 158 | |
| 159 public WorkerThreadTask execute(WorkerThreadTask task) throws DebuggerException { | |
| 160 synchronized (workerThread) { | |
| 161 this.task = task; | |
| 162 workerThread.notifyAll(); | |
| 163 while (this.task != null) { | |
| 164 try { | |
| 165 workerThread.wait(); | |
| 166 } catch (InterruptedException x) {} | |
| 167 } | |
| 168 if (lastException != null) { | |
| 169 throw new DebuggerException(lastException); | |
| 170 } else { | |
| 171 return task; | |
| 172 } | |
| 173 } | |
| 174 } | |
| 175 } | |
| 176 | |
| 177 private BsdDebuggerLocalWorkerThread workerThread = null; | |
| 178 | |
| 179 //---------------------------------------------------------------------- | |
| 180 // Implementation of Debugger interface | |
| 181 // | |
| 182 | |
| 183 /** <P> machDesc may not be null. </P> | |
| 184 | |
| 185 <P> useCache should be set to true if debugging is being done | |
| 186 locally, and to false if the debugger is being created for the | |
| 187 purpose of supporting remote debugging. </P> */ | |
| 188 public BsdDebuggerLocal(MachineDescription machDesc, | |
| 189 boolean useCache) throws DebuggerException { | |
| 190 this.machDesc = machDesc; | |
| 191 utils = new DebuggerUtilities(machDesc.getAddressSize(), | |
| 192 machDesc.isBigEndian()) { | |
| 193 public void checkAlignment(long address, long alignment) { | |
| 194 // Need to override default checkAlignment because we need to | |
| 195 // relax alignment constraints on Bsd/x86 | |
| 196 if ( (address % alignment != 0) | |
| 197 &&(alignment != 8 || address % 4 != 0)) { | |
| 198 throw new UnalignedAddressException( | |
| 199 "Trying to read at address: " | |
| 200 + addressValueToString(address) | |
| 201 + " with alignment: " + alignment, | |
| 202 address); | |
| 203 } | |
| 204 } | |
| 205 }; | |
| 206 | |
| 207 if (useCache) { | |
| 208 // FIXME: re-test necessity of cache on Bsd, where data | |
| 209 // fetching is faster | |
| 210 // Cache portion of the remote process's address space. | |
| 211 // Fetching data over the socket connection to dbx is slow. | |
| 212 // Might be faster if we were using a binary protocol to talk to | |
| 213 // dbx, but would have to test. For now, this cache works best | |
| 214 // if it covers the entire heap of the remote process. FIXME: at | |
| 215 // least should make this tunable from the outside, i.e., via | |
| 216 // the UI. This is a cache of 4096 4K pages, or 16 MB. The page | |
| 217 // size must be adjusted to be the hardware's page size. | |
| 218 // (FIXME: should pick this up from the debugger.) | |
| 219 if (getCPU().equals("ia64")) { | |
| 220 initCache(16384, parseCacheNumPagesProperty(1024)); | |
| 221 } else { | |
| 222 initCache(4096, parseCacheNumPagesProperty(4096)); | |
| 223 } | |
| 224 } | |
| 225 | |
| 8750 | 226 isDarwin = getOS().equals("darwin"); |
| 3960 | 227 workerThread = new BsdDebuggerLocalWorkerThread(this); |
| 228 workerThread.start(); | |
| 229 } | |
| 230 | |
| 231 /** From the Debugger interface via JVMDebugger */ | |
| 232 public boolean hasProcessList() throws DebuggerException { | |
| 233 return false; | |
| 234 } | |
| 235 | |
| 236 /** From the Debugger interface via JVMDebugger */ | |
| 237 public List getProcessList() throws DebuggerException { | |
| 238 throw new DebuggerException("getProcessList not implemented yet"); | |
| 239 } | |
| 240 | |
| 241 private void checkAttached() throws DebuggerException { | |
| 242 if (attached) { | |
| 243 if (isCore) { | |
| 244 throw new DebuggerException("attached to a core dump already"); | |
| 245 } else { | |
| 246 throw new DebuggerException("attached to a process already"); | |
| 247 } | |
| 248 } | |
| 249 } | |
| 250 | |
| 251 private void requireAttach() { | |
| 252 if (! attached) { | |
| 253 throw new RuntimeException("not attached to a process or a core!"); | |
| 254 } | |
| 255 } | |
| 256 | |
| 257 /* called from attach methods */ | |
| 258 private void findABIVersion() throws DebuggerException { | |
| 8750 | 259 String libjvmName = isDarwin ? "libjvm.dylib" : "libjvm.so"; |
| 260 String javaThreadVt = isDarwin ? "_vt_10JavaThread" : "__vt_10JavaThread"; | |
| 10229 | 261 if (lookupByName0(libjvmName, javaThreadVt) != 0) { |
| 3960 | 262 // old C++ ABI |
| 263 useGCC32ABI = false; | |
| 264 } else { | |
| 265 // new C++ ABI | |
| 266 useGCC32ABI = true; | |
| 267 } | |
| 268 } | |
| 269 | |
| 270 /** From the Debugger interface via JVMDebugger */ | |
| 271 public synchronized void attach(int processID) throws DebuggerException { | |
| 272 checkAttached(); | |
| 273 threadList = new ArrayList(); | |
| 274 loadObjectList = new ArrayList(); | |
| 275 class AttachTask implements WorkerThreadTask { | |
| 276 int pid; | |
| 277 public void doit(BsdDebuggerLocal debugger) { | |
| 278 debugger.attach0(pid); | |
| 279 debugger.attached = true; | |
| 280 debugger.isCore = false; | |
| 281 findABIVersion(); | |
| 282 } | |
| 283 } | |
| 284 | |
| 285 AttachTask task = new AttachTask(); | |
| 286 task.pid = processID; | |
| 287 workerThread.execute(task); | |
| 288 } | |
| 289 | |
| 290 /** From the Debugger interface via JVMDebugger */ | |
| 291 public synchronized void attach(String execName, String coreName) { | |
| 292 checkAttached(); | |
| 293 threadList = new ArrayList(); | |
| 294 loadObjectList = new ArrayList(); | |
| 295 attach0(execName, coreName); | |
| 296 attached = true; | |
| 297 isCore = true; | |
| 298 findABIVersion(); | |
| 299 } | |
| 300 | |
| 301 /** From the Debugger interface via JVMDebugger */ | |
| 302 public synchronized boolean detach() { | |
| 303 if (!attached) { | |
| 304 return false; | |
| 305 } | |
| 306 | |
| 307 threadList = null; | |
| 308 loadObjectList = null; | |
| 309 | |
| 310 if (isCore) { | |
| 311 detach0(); | |
| 312 attached = false; | |
| 313 return true; | |
| 314 } else { | |
| 315 class DetachTask implements WorkerThreadTask { | |
| 316 boolean result = false; | |
| 317 | |
| 318 public void doit(BsdDebuggerLocal debugger) { | |
| 319 debugger.detach0(); | |
| 320 debugger.attached = false; | |
| 321 result = true; | |
| 322 } | |
| 323 } | |
| 324 | |
| 325 DetachTask task = new DetachTask(); | |
| 326 workerThread.execute(task); | |
| 327 return task.result; | |
| 328 } | |
| 329 } | |
| 330 | |
| 331 /** From the Debugger interface via JVMDebugger */ | |
| 332 public Address parseAddress(String addressString) | |
| 333 throws NumberFormatException { | |
| 334 long addr = utils.scanAddress(addressString); | |
| 335 if (addr == 0) { | |
| 336 return null; | |
| 337 } | |
| 338 return new BsdAddress(this, addr); | |
| 339 } | |
| 340 | |
| 341 /** From the Debugger interface via JVMDebugger */ | |
| 342 public String getOS() { | |
| 343 return PlatformInfo.getOS(); | |
| 344 } | |
| 345 | |
| 346 /** From the Debugger interface via JVMDebugger */ | |
| 347 public String getCPU() { | |
| 348 return PlatformInfo.getCPU(); | |
| 349 } | |
| 350 | |
| 351 public boolean hasConsole() throws DebuggerException { | |
| 352 return false; | |
| 353 } | |
| 354 | |
| 355 public String consoleExecuteCommand(String cmd) throws DebuggerException { | |
| 356 throw new DebuggerException("No debugger console available on Bsd"); | |
| 357 } | |
| 358 | |
| 359 public String getConsolePrompt() throws DebuggerException { | |
| 360 return null; | |
| 361 } | |
| 362 | |
| 363 /* called from lookup */ | |
| 364 private long handleGCC32ABI(long addr, String symbol) throws DebuggerException { | |
| 365 if (useGCC32ABI && symbol.startsWith("_ZTV")) { | |
| 366 return addr + (2 * machDesc.getAddressSize()); | |
| 367 } else { | |
| 368 return addr; | |
| 369 } | |
| 370 } | |
| 371 | |
| 372 /** From the SymbolLookup interface via Debugger and JVMDebugger */ | |
| 373 public synchronized Address lookup(String objectName, String symbol) { | |
| 374 requireAttach(); | |
| 375 if (!attached) { | |
| 376 return null; | |
| 377 } | |
| 378 | |
| 379 if (isCore) { | |
| 8750 | 380 // MacOSX symbol with "_" as leading |
| 381 long addr = lookupByName0(objectName, isDarwin ? "_" + symbol : symbol); | |
| 3960 | 382 return (addr == 0)? null : new BsdAddress(this, handleGCC32ABI(addr, symbol)); |
| 383 } else { | |
| 384 class LookupByNameTask implements WorkerThreadTask { | |
| 385 String objectName, symbol; | |
| 386 Address result; | |
| 387 | |
| 388 public void doit(BsdDebuggerLocal debugger) { | |
| 389 long addr = debugger.lookupByName0(objectName, symbol); | |
| 390 result = (addr == 0 ? null : new BsdAddress(debugger, handleGCC32ABI(addr, symbol))); | |
| 391 } | |
| 392 } | |
| 393 | |
| 394 LookupByNameTask task = new LookupByNameTask(); | |
| 395 task.objectName = objectName; | |
| 396 task.symbol = symbol; | |
| 397 workerThread.execute(task); | |
| 398 return task.result; | |
| 399 } | |
| 400 } | |
| 401 | |
| 402 /** From the SymbolLookup interface via Debugger and JVMDebugger */ | |
| 403 public synchronized OopHandle lookupOop(String objectName, String symbol) { | |
| 404 Address addr = lookup(objectName, symbol); | |
| 405 if (addr == null) { | |
| 406 return null; | |
| 407 } | |
| 408 return addr.addOffsetToAsOopHandle(0); | |
| 409 } | |
| 410 | |
| 411 /** From the Debugger interface */ | |
| 412 public MachineDescription getMachineDescription() { | |
| 413 return machDesc; | |
| 414 } | |
| 415 | |
| 416 //---------------------------------------------------------------------- | |
| 417 // Implementation of ThreadAccess interface | |
| 418 // | |
| 419 | |
| 420 /** From the ThreadAccess interface via Debugger and JVMDebugger */ | |
|
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421 public ThreadProxy getThreadForIdentifierAddress(Address threadIdAddr, Address uniqueThreadIdAddr) { |
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422 return new BsdThread(this, threadIdAddr, uniqueThreadIdAddr); |
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423 } |
| 8750 | 424 |
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425 @Override |
| 3960 | 426 public ThreadProxy getThreadForIdentifierAddress(Address addr) { |
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427 throw new RuntimeException("unimplemented"); |
| 3960 | 428 } |
| 429 | |
| 430 /** From the ThreadAccess interface via Debugger and JVMDebugger */ | |
| 431 public ThreadProxy getThreadForThreadId(long id) { | |
| 432 return new BsdThread(this, id); | |
| 433 } | |
| 434 | |
| 435 //---------------------------------------------------------------------- | |
| 436 // Internal routines (for implementation of BsdAddress). | |
| 437 // These must not be called until the MachineDescription has been set up. | |
| 438 // | |
| 439 | |
| 440 /** From the BsdDebugger interface */ | |
| 441 public String addressValueToString(long address) { | |
| 442 return utils.addressValueToString(address); | |
| 443 } | |
| 444 | |
| 445 /** From the BsdDebugger interface */ | |
| 446 public BsdAddress readAddress(long address) | |
| 447 throws UnmappedAddressException, UnalignedAddressException { | |
| 448 long value = readAddressValue(address); | |
| 449 return (value == 0 ? null : new BsdAddress(this, value)); | |
| 450 } | |
| 451 public BsdAddress readCompOopAddress(long address) | |
| 452 throws UnmappedAddressException, UnalignedAddressException { | |
| 453 long value = readCompOopAddressValue(address); | |
| 454 return (value == 0 ? null : new BsdAddress(this, value)); | |
| 455 } | |
| 456 | |
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457 public BsdAddress readCompKlassAddress(long address) |
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458 throws UnmappedAddressException, UnalignedAddressException { |
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459 long value = readCompKlassAddressValue(address); |
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460 return (value == 0 ? null : new BsdAddress(this, value)); |
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461 } |
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462 |
| 3960 | 463 /** From the BsdDebugger interface */ |
| 464 public BsdOopHandle readOopHandle(long address) | |
| 465 throws UnmappedAddressException, UnalignedAddressException, | |
| 466 NotInHeapException { | |
| 467 long value = readAddressValue(address); | |
| 468 return (value == 0 ? null : new BsdOopHandle(this, value)); | |
| 469 } | |
| 470 public BsdOopHandle readCompOopHandle(long address) | |
| 471 throws UnmappedAddressException, UnalignedAddressException, | |
| 472 NotInHeapException { | |
| 473 long value = readCompOopAddressValue(address); | |
| 474 return (value == 0 ? null : new BsdOopHandle(this, value)); | |
| 475 } | |
| 476 | |
| 477 //---------------------------------------------------------------------- | |
| 478 // Thread context access | |
| 479 // | |
| 480 | |
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481 public synchronized long[] getThreadIntegerRegisterSet(long unique_thread_id) |
| 3960 | 482 throws DebuggerException { |
| 483 requireAttach(); | |
| 484 if (isCore) { | |
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485 return getThreadIntegerRegisterSet0(unique_thread_id); |
| 3960 | 486 } else { |
| 487 class GetThreadIntegerRegisterSetTask implements WorkerThreadTask { | |
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488 long unique_thread_id; |
| 3960 | 489 long[] result; |
| 490 public void doit(BsdDebuggerLocal debugger) { | |
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491 result = debugger.getThreadIntegerRegisterSet0(unique_thread_id); |
| 3960 | 492 } |
| 493 } | |
| 494 | |
| 495 GetThreadIntegerRegisterSetTask task = new GetThreadIntegerRegisterSetTask(); | |
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496 task.unique_thread_id = unique_thread_id; |
| 3960 | 497 workerThread.execute(task); |
| 498 return task.result; | |
| 499 } | |
| 500 } | |
| 501 | |
| 502 /** Need to override this to relax alignment checks on x86. */ | |
| 503 public long readCInteger(long address, long numBytes, boolean isUnsigned) | |
| 504 throws UnmappedAddressException, UnalignedAddressException { | |
| 505 // Only slightly relaxed semantics -- this is a hack, but is | |
| 506 // necessary on x86 where it seems the compiler is | |
| 507 // putting some global 64-bit data on 32-bit boundaries | |
| 508 if (numBytes == 8) { | |
| 509 utils.checkAlignment(address, 4); | |
| 510 } else { | |
| 511 utils.checkAlignment(address, numBytes); | |
| 512 } | |
| 513 byte[] data = readBytes(address, numBytes); | |
| 514 return utils.dataToCInteger(data, isUnsigned); | |
| 515 } | |
| 516 | |
| 517 // Overridden from DebuggerBase because we need to relax alignment | |
| 518 // constraints on x86 | |
| 519 public long readJLong(long address) | |
| 520 throws UnmappedAddressException, UnalignedAddressException { | |
| 521 utils.checkAlignment(address, jintSize); | |
| 522 byte[] data = readBytes(address, jlongSize); | |
| 523 return utils.dataToJLong(data, jlongSize); | |
| 524 } | |
| 525 | |
| 526 //---------------------------------------------------------------------- | |
| 527 // Address access. Can not be package private, but should only be | |
| 528 // accessed by the architecture-specific subpackages. | |
| 529 | |
| 530 /** From the BsdDebugger interface */ | |
| 531 public long getAddressValue(Address addr) { | |
| 532 if (addr == null) return 0; | |
| 533 return ((BsdAddress) addr).getValue(); | |
| 534 } | |
| 535 | |
| 536 /** From the BsdDebugger interface */ | |
| 537 public Address newAddress(long value) { | |
| 538 if (value == 0) return null; | |
| 539 return new BsdAddress(this, value); | |
| 540 } | |
| 541 | |
| 542 /** From the BsdCDebugger interface */ | |
| 543 public List/*<ThreadProxy>*/ getThreadList() { | |
| 544 requireAttach(); | |
| 545 return threadList; | |
| 546 } | |
| 547 | |
| 548 /** From the BsdCDebugger interface */ | |
| 549 public List/*<LoadObject>*/ getLoadObjectList() { | |
| 550 requireAttach(); | |
| 551 return loadObjectList; | |
| 552 } | |
| 553 | |
| 554 /** From the BsdCDebugger interface */ | |
| 555 public synchronized ClosestSymbol lookup(long addr) { | |
| 556 requireAttach(); | |
| 557 if (isCore) { | |
| 558 return lookupByAddress0(addr); | |
| 559 } else { | |
| 560 class LookupByAddressTask implements WorkerThreadTask { | |
| 561 long addr; | |
| 562 ClosestSymbol result; | |
| 563 | |
| 564 public void doit(BsdDebuggerLocal debugger) { | |
| 565 result = debugger.lookupByAddress0(addr); | |
| 566 } | |
| 567 } | |
| 568 | |
| 569 LookupByAddressTask task = new LookupByAddressTask(); | |
| 570 task.addr = addr; | |
| 571 workerThread.execute(task); | |
| 572 return task.result; | |
| 573 } | |
| 574 } | |
| 575 | |
| 576 public CDebugger getCDebugger() { | |
| 577 if (cdbg == null) { | |
| 578 String cpu = getCPU(); | |
| 579 if (cpu.equals("ia64") ) { | |
| 580 // IA-64 is not supported because of stack-walking issues | |
| 581 return null; | |
| 582 } | |
| 583 cdbg = new BsdCDebugger(this); | |
| 584 } | |
| 585 return cdbg; | |
| 586 } | |
| 587 | |
| 588 /** This reads bytes from the remote process. */ | |
| 589 public synchronized ReadResult readBytesFromProcess(long address, | |
| 590 long numBytes) throws UnmappedAddressException, DebuggerException { | |
| 591 requireAttach(); | |
| 592 if (isCore) { | |
| 593 byte[] res = readBytesFromProcess0(address, numBytes); | |
| 594 return (res != null)? new ReadResult(res) : new ReadResult(address); | |
| 595 } else { | |
| 596 class ReadBytesFromProcessTask implements WorkerThreadTask { | |
| 597 long address, numBytes; | |
| 598 ReadResult result; | |
| 599 public void doit(BsdDebuggerLocal debugger) { | |
| 600 byte[] res = debugger.readBytesFromProcess0(address, numBytes); | |
| 601 if (res != null) | |
| 602 result = new ReadResult(res); | |
| 603 else | |
| 604 result = new ReadResult(address); | |
| 605 } | |
| 606 } | |
| 607 | |
| 608 ReadBytesFromProcessTask task = new ReadBytesFromProcessTask(); | |
| 609 task.address = address; | |
| 610 task.numBytes = numBytes; | |
| 611 workerThread.execute(task); | |
| 612 return task.result; | |
| 613 } | |
| 614 } | |
| 615 | |
| 616 public void writeBytesToProcess(long address, long numBytes, byte[] data) | |
| 617 throws UnmappedAddressException, DebuggerException { | |
| 618 // FIXME | |
| 619 throw new DebuggerException("Unimplemented"); | |
| 620 } | |
| 621 | |
| 8750 | 622 /** this functions used for core file reading and called from native attach0, |
| 623 it returns an array of long integers as | |
| 624 [thread_id, stack_start, stack_end, thread_id, stack_start, stack_end, ....] for | |
| 625 all java threads recorded in Threads. Also adds the ThreadProxy to threadList */ | |
| 626 public long[] getJavaThreadsInfo() { | |
| 627 requireAttach(); | |
| 628 Threads threads = VM.getVM().getThreads(); | |
| 629 int len = threads.getNumberOfThreads(); | |
| 630 long[] result = new long[len * 3]; // triple | |
| 631 JavaThread t = threads.first(); | |
| 632 long beg, end; | |
| 633 int i = 0; | |
| 634 while (t != null) { | |
| 635 end = t.getStackBaseValue(); | |
| 636 beg = end - t.getStackSize(); | |
| 637 BsdThread bsdt = (BsdThread)t.getThreadProxy(); | |
| 638 long uid = bsdt.getUniqueThreadId(); | |
| 639 if (threadList != null) threadList.add(bsdt); | |
| 640 result[i] = uid; | |
| 641 result[i + 1] = beg; | |
| 642 result[i + 2] = end; | |
| 643 t = t.next(); | |
| 644 i += 3; | |
| 645 } | |
| 646 return result; | |
| 647 } | |
| 648 | |
| 3960 | 649 static { |
| 650 System.loadLibrary("saproc"); | |
| 651 init0(); | |
| 652 } | |
| 653 } |