Mercurial > hg > truffle
annotate agent/src/share/classes/sun/jvm/hotspot/bugspot/BugSpotAgent.java @ 3972:4f93f0d00802
7059019: G1: add G1 support to the SA
Summary: Extend the SA to recognize the G1CollectedHeap and implement any code that's needed by our serviceability tools (jmap, jinfo, jstack, etc.) that depend on the SA.
Reviewed-by: never, poonam, johnc
| author | tonyp |
|---|---|
| date | Tue, 20 Sep 2011 09:59:59 -0400 |
| parents | f6f3bb0ee072 |
| children | f08d439fab8c |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 3939 | 2 * Copyright (c) 2002, 2011, 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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6941466: Oracle rebranding changes for Hotspot repositories
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
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changeset
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20 * or visit www.oracle.com if you need additional information or have any |
|
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6941466: Oracle rebranding changes for Hotspot repositories
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 25 package sun.jvm.hotspot.bugspot; | |
| 26 | |
| 27 import java.io.PrintStream; | |
| 28 import java.net.*; | |
| 29 import java.rmi.*; | |
| 30 import sun.jvm.hotspot.*; | |
| 31 import sun.jvm.hotspot.debugger.*; | |
| 32 import sun.jvm.hotspot.debugger.proc.*; | |
| 33 import sun.jvm.hotspot.debugger.cdbg.*; | |
| 34 import sun.jvm.hotspot.debugger.windbg.*; | |
| 35 import sun.jvm.hotspot.debugger.linux.*; | |
| 36 import sun.jvm.hotspot.debugger.sparc.*; | |
| 37 import sun.jvm.hotspot.debugger.remote.*; | |
| 38 import sun.jvm.hotspot.livejvm.*; | |
| 39 import sun.jvm.hotspot.memory.*; | |
| 40 import sun.jvm.hotspot.oops.*; | |
| 41 import sun.jvm.hotspot.runtime.*; | |
| 42 import sun.jvm.hotspot.types.*; | |
| 43 import sun.jvm.hotspot.utilities.*; | |
| 44 | |
| 45 /** <P> This class wraps the basic functionality for connecting to the | |
| 46 * target process or debug server. It makes it simple to start up the | |
| 47 * debugging system. </P> | |
| 48 * | |
| 49 * <P> This agent (as compared to the HotSpotAgent) can connect to | |
| 50 * and interact with arbitrary processes. If the target process | |
| 51 * happens to be a HotSpot JVM, the Java debugging features of the | |
| 52 * Serviceability Agent are enabled. Further, if the Serviceability | |
| 53 * Agent's JVMDI module is loaded into the target VM, interaction | |
| 54 * with the live Java program is possible, specifically the catching | |
| 55 * of exceptions and setting of breakpoints. </P> | |
| 56 * | |
| 57 * <P> The BugSpot debugger requires that the underlying Debugger | |
| 58 * support C/C++ debugging via the CDebugger interface. </P> | |
| 59 * | |
| 60 * <P> FIXME: need to add a way to configure the paths to dbx and the | |
| 61 * DSO from the outside. However, this should work for now for | |
| 62 * internal use. </P> | |
| 63 * | |
| 64 * <P> FIXME: especially with the addition of remote debugging, this | |
| 65 * has turned into a mess; needs rethinking. </P> */ | |
| 66 | |
| 67 public class BugSpotAgent { | |
| 68 | |
| 69 private JVMDebugger debugger; | |
| 70 private MachineDescription machDesc; | |
| 71 private TypeDataBase db; | |
| 72 | |
| 73 private String os; | |
| 74 private String cpu; | |
| 75 private String fileSep; | |
| 76 | |
| 77 // The system can work in several ways: | |
| 78 // - Attaching to local process | |
| 79 // - Attaching to local core file | |
| 80 // - Connecting to remote debug server | |
| 81 // - Starting debug server for process | |
| 82 // - Starting debug server for core file | |
| 83 | |
| 84 // These are options for the "client" side of things | |
| 85 private static final int PROCESS_MODE = 0; | |
| 86 private static final int CORE_FILE_MODE = 1; | |
| 87 private static final int REMOTE_MODE = 2; | |
| 88 private int startupMode; | |
| 89 | |
| 90 // This indicates whether we are really starting a server or not | |
| 91 private boolean isServer; | |
| 92 | |
| 93 // All possible required information for connecting | |
| 94 private int pid; | |
| 95 private String executableName; | |
| 96 private String coreFileName; | |
| 97 private String debugServerID; | |
| 98 | |
| 99 // All needed information for server side | |
| 100 private String serverID; | |
| 101 | |
| 102 // Indicates whether we are attached to a HotSpot JVM or not | |
| 103 private boolean javaMode; | |
| 104 | |
| 105 // Indicates whether we have process control over a live HotSpot JVM | |
| 106 // or not; non-null if so. | |
| 107 private ServiceabilityAgentJVMDIModule jvmdi; | |
| 108 // While handling C breakpoints interactivity with the Java program | |
| 109 // is forbidden. Too many invariants are broken while the target is | |
| 110 // stopped at a C breakpoint to risk making JVMDI calls. | |
| 111 private boolean javaInteractionDisabled; | |
| 112 | |
| 113 private String[] jvmLibNames; | |
| 114 private String[] saLibNames; | |
| 115 | |
| 116 // FIXME: make these configurable, i.e., via a dotfile; also | |
| 117 // consider searching within the JDK from which this Java executable | |
| 118 // comes to find them | |
| 119 private static final String defaultDbxPathPrefix = "/net/jano.eng/export/disk05/hotspot/sa"; | |
| 120 private static final String defaultDbxSvcAgentDSOPathPrefix = "/net/jano.eng/export/disk05/hotspot/sa"; | |
| 121 | |
| 122 private static final boolean DEBUG; | |
| 123 static { | |
| 124 DEBUG = System.getProperty("sun.jvm.hotspot.bugspot.BugSpotAgent.DEBUG") | |
| 125 != null; | |
| 126 } | |
| 127 | |
| 128 static void debugPrintln(String str) { | |
| 129 if (DEBUG) { | |
| 130 System.err.println(str); | |
| 131 } | |
| 132 } | |
| 133 | |
| 134 static void showUsage() { | |
| 135 System.out.println(" You can also pass these -D options to java to specify where to find dbx and the \n" + | |
| 136 " Serviceability Agent plugin for dbx:"); | |
| 137 System.out.println(" -DdbxPathName=<path-to-dbx-executable>\n" + | |
| 138 " Default is derived from dbxPathPrefix"); | |
| 139 System.out.println(" or"); | |
| 140 System.out.println(" -DdbxPathPrefix=<xxx>\n" + | |
| 141 " where xxx is the path name of a dir structure that contains:\n" + | |
| 142 " <os>/<arch>/bin/dbx\n" + | |
| 143 " The default is " + defaultDbxPathPrefix); | |
| 144 System.out.println(" and"); | |
| 145 System.out.println(" -DdbxSvcAgentDSOPathName=<path-to-dbx-serviceability-agent-module>\n" + | |
| 146 " Default is determined from dbxSvcAgentDSOPathPrefix"); | |
| 147 System.out.println(" or"); | |
| 148 System.out.println(" -DdbxSvcAgentDSOPathPrefix=<xxx>\n" + | |
| 149 " where xxx is the pathname of a dir structure that contains:\n" + | |
| 150 " <os>/<arch>/bin/lib/libsvc_agent_dbx.so\n" + | |
| 151 " The default is " + defaultDbxSvcAgentDSOPathPrefix); | |
| 152 } | |
| 153 | |
| 154 public BugSpotAgent() { | |
| 155 // for non-server add shutdown hook to clean-up debugger in case | |
| 156 // of forced exit. For remote server, shutdown hook is added by | |
| 157 // DebugServer. | |
| 158 Runtime.getRuntime().addShutdownHook(new java.lang.Thread( | |
| 159 new Runnable() { | |
| 160 public void run() { | |
| 161 synchronized (BugSpotAgent.this) { | |
| 162 if (!isServer) { | |
| 163 detach(); | |
| 164 } | |
| 165 } | |
| 166 } | |
| 167 })); | |
| 168 } | |
| 169 | |
| 170 //-------------------------------------------------------------------------------- | |
| 171 // Accessors (once the system is set up) | |
| 172 // | |
| 173 | |
| 174 public synchronized Debugger getDebugger() { | |
| 175 return debugger; | |
| 176 } | |
| 177 | |
| 178 public synchronized CDebugger getCDebugger() { | |
| 179 return getDebugger().getCDebugger(); | |
| 180 } | |
| 181 | |
| 182 public synchronized ProcessControl getProcessControl() { | |
| 183 return getCDebugger().getProcessControl(); | |
| 184 } | |
| 185 | |
| 186 public synchronized TypeDataBase getTypeDataBase() { | |
| 187 return db; | |
| 188 } | |
| 189 | |
| 190 /** Indicates whether the target process is suspended | |
| 191 completely. Equivalent to getProcessControl().isSuspended(). */ | |
| 192 public synchronized boolean isSuspended() throws DebuggerException { | |
| 193 return getProcessControl().isSuspended(); | |
| 194 } | |
| 195 | |
| 196 /** Suspends the target process completely. Equivalent to | |
| 197 getProcessControl().suspend(). */ | |
| 198 public synchronized void suspend() throws DebuggerException { | |
| 199 getProcessControl().suspend(); | |
| 200 } | |
| 201 | |
| 202 /** Resumes the target process completely. Equivalent to | |
| 203 getProcessControl().suspend(). */ | |
| 204 public synchronized void resume() throws DebuggerException { | |
| 205 getProcessControl().resume(); | |
| 206 } | |
| 207 | |
| 208 /** Indicates whether we are attached to a Java HotSpot virtual | |
| 209 machine */ | |
| 210 public synchronized boolean isJavaMode() { | |
| 211 return javaMode; | |
| 212 } | |
| 213 | |
| 214 /** Temporarily disables interaction with the target process via | |
| 215 JVMDI. This is done while the target process is stopped at a C | |
| 216 breakpoint. Can be called even if the JVMDI agent has not been | |
| 217 initialized. */ | |
| 218 public synchronized void disableJavaInteraction() { | |
| 219 javaInteractionDisabled = true; | |
| 220 } | |
| 221 | |
| 222 /** Re-enables interaction with the target process via JVMDI. This | |
| 223 is done while the target process is continued past a C | |
| 224 braekpoint. Can be called even if the JVMDI agent has not been | |
| 225 initialized. */ | |
| 226 public synchronized void enableJavaInteraction() { | |
| 227 javaInteractionDisabled = false; | |
| 228 } | |
| 229 | |
| 230 /** Indicates whether Java interaction has been disabled */ | |
| 231 public synchronized boolean isJavaInteractionDisabled() { | |
| 232 return javaInteractionDisabled; | |
| 233 } | |
| 234 | |
| 235 /** Indicates whether we can talk to the Serviceability Agent's | |
| 236 JVMDI module to be able to set breakpoints */ | |
| 237 public synchronized boolean canInteractWithJava() { | |
| 238 return (jvmdi != null) && !javaInteractionDisabled; | |
| 239 } | |
| 240 | |
| 241 /** Suspends all Java threads in the target process. Can only be | |
| 242 called if we are attached to a HotSpot JVM and can connect to | |
| 243 the SA's JVMDI module. Must not be called when the target | |
| 244 process has been suspended with suspend(). */ | |
| 245 public synchronized void suspendJava() throws DebuggerException { | |
| 246 if (!canInteractWithJava()) { | |
| 247 throw new DebuggerException("Could not connect to SA's JVMDI module"); | |
| 248 } | |
| 249 if (jvmdi.isSuspended()) { | |
| 250 throw new DebuggerException("Target process already suspended via JVMDI"); | |
| 251 } | |
| 252 jvmdi.suspend(); | |
| 253 } | |
| 254 | |
| 255 /** Resumes all Java threads in the target process. Can only be | |
| 256 called if we are attached to a HotSpot JVM and can connect to | |
| 257 the SA's JVMDI module. Must not be called when the target | |
| 258 process has been suspended with suspend(). */ | |
| 259 public synchronized void resumeJava() throws DebuggerException { | |
| 260 if (!canInteractWithJava()) { | |
| 261 throw new DebuggerException("Could not connect to SA's JVMDI module"); | |
| 262 } | |
| 263 if (!jvmdi.isSuspended()) { | |
| 264 throw new DebuggerException("Target process already resumed via JVMDI"); | |
| 265 } | |
| 266 jvmdi.resume(); | |
| 267 } | |
| 268 | |
| 269 /** Indicates whether the target process has been suspended at the | |
| 270 Java language level via the SA's JVMDI module */ | |
| 271 public synchronized boolean isJavaSuspended() throws DebuggerException { | |
| 272 return jvmdi.isSuspended(); | |
| 273 } | |
| 274 | |
| 275 /** Toggle a Java breakpoint at the given location. */ | |
| 276 public synchronized ServiceabilityAgentJVMDIModule.BreakpointToggleResult | |
| 277 toggleJavaBreakpoint(String srcFileName, | |
| 278 String pkgName, | |
| 279 int lineNo) { | |
| 280 if (!canInteractWithJava()) { | |
| 281 throw new DebuggerException("Could not connect to SA's JVMDI module; can not toggle Java breakpoints"); | |
| 282 } | |
| 283 return jvmdi.toggleBreakpoint(srcFileName, pkgName, lineNo); | |
| 284 } | |
| 285 | |
| 286 /** Access to JVMDI module's eventPending */ | |
| 287 public synchronized boolean javaEventPending() throws DebuggerException { | |
| 288 if (!canInteractWithJava()) { | |
| 289 throw new DebuggerException("Could not connect to SA's JVMDI module; can not poll for Java debug events"); | |
| 290 } | |
| 291 return jvmdi.eventPending(); | |
| 292 } | |
| 293 | |
| 294 /** Access to JVMDI module's eventPoll */ | |
| 295 public synchronized Event javaEventPoll() throws DebuggerException { | |
| 296 if (!canInteractWithJava()) { | |
| 297 throw new DebuggerException("Could not connect to SA's JVMDI module; can not poll for Java debug events"); | |
| 298 } | |
| 299 return jvmdi.eventPoll(); | |
| 300 } | |
| 301 | |
| 302 /** Access to JVMDI module's eventContinue */ | |
| 303 public synchronized void javaEventContinue() throws DebuggerException { | |
| 304 if (!canInteractWithJava()) { | |
| 305 throw new DebuggerException("Could not connect to SA's JVMDI module; can not continue past Java debug events"); | |
| 306 } | |
| 307 jvmdi.eventContinue(); | |
| 308 } | |
| 309 | |
| 310 | |
| 311 // FIXME: add other accessors. For example, suspension and | |
| 312 // resumption should be done through this interface, as well as | |
| 313 // interaction with the live Java process such as breakpoint setting. | |
| 314 // Probably should not expose the ServiceabilityAgentJVMDIModule | |
| 315 // from this interface. | |
| 316 | |
| 317 //-------------------------------------------------------------------------------- | |
| 318 // Client-side operations | |
| 319 // | |
| 320 | |
| 321 /** This attaches to a process running on the local machine. */ | |
| 322 public synchronized void attach(int processID) | |
| 323 throws DebuggerException { | |
| 324 if (debugger != null) { | |
| 325 throw new DebuggerException("Already attached"); | |
| 326 } | |
| 327 pid = processID; | |
| 328 startupMode = PROCESS_MODE; | |
| 329 isServer = false; | |
| 330 go(); | |
| 331 } | |
| 332 | |
| 333 /** This opens a core file on the local machine */ | |
| 334 public synchronized void attach(String executableName, String coreFileName) | |
| 335 throws DebuggerException { | |
| 336 if (debugger != null) { | |
| 337 throw new DebuggerException("Already attached"); | |
| 338 } | |
| 339 if ((executableName == null) || (coreFileName == null)) { | |
| 340 throw new DebuggerException("Both the core file name and executable name must be specified"); | |
| 341 } | |
| 342 this.executableName = executableName; | |
| 343 this.coreFileName = coreFileName; | |
| 344 startupMode = CORE_FILE_MODE; | |
| 345 isServer = false; | |
| 346 go(); | |
| 347 } | |
| 348 | |
| 349 /** This attaches to a "debug server" on a remote machine; this | |
| 350 remote server has already attached to a process or opened a | |
| 351 core file and is waiting for RMI calls on the Debugger object to | |
| 352 come in. */ | |
| 353 public synchronized void attach(String remoteServerID) | |
| 354 throws DebuggerException { | |
| 355 if (debugger != null) { | |
| 356 throw new DebuggerException("Already attached to a process"); | |
| 357 } | |
| 358 if (remoteServerID == null) { | |
| 359 throw new DebuggerException("Debug server id must be specified"); | |
| 360 } | |
| 361 | |
| 362 debugServerID = remoteServerID; | |
| 363 startupMode = REMOTE_MODE; | |
| 364 isServer = false; | |
| 365 go(); | |
| 366 } | |
| 367 | |
| 368 /** This should only be called by the user on the client machine, | |
| 369 not the server machine */ | |
| 370 public synchronized boolean detach() throws DebuggerException { | |
| 371 if (isServer) { | |
| 372 throw new DebuggerException("Should not call detach() for server configuration"); | |
| 373 } | |
| 374 return detachInternal(); | |
| 375 } | |
| 376 | |
| 377 //-------------------------------------------------------------------------------- | |
| 378 // Server-side operations | |
| 379 // | |
| 380 | |
| 381 /** This attaches to a process running on the local machine and | |
| 382 starts a debug server, allowing remote machines to connect and | |
| 383 examine this process. uniqueID is used to uniquely identify the | |
| 384 debuggee */ | |
| 385 public synchronized void startServer(int processID, String uniqueID) | |
| 386 throws DebuggerException { | |
| 387 if (debugger != null) { | |
| 388 throw new DebuggerException("Already attached"); | |
| 389 } | |
| 390 pid = processID; | |
| 391 startupMode = PROCESS_MODE; | |
| 392 isServer = true; | |
| 393 serverID = uniqueID; | |
| 394 go(); | |
| 395 } | |
| 396 | |
| 397 /** This attaches to a process running on the local machine and | |
| 398 starts a debug server, allowing remote machines to connect and | |
| 399 examine this process. */ | |
| 400 public synchronized void startServer(int processID) | |
| 401 throws DebuggerException { | |
| 402 startServer(processID, null); | |
| 403 } | |
| 404 | |
| 405 /** This opens a core file on the local machine and starts a debug | |
| 406 server, allowing remote machines to connect and examine this | |
| 407 core file. uniqueID is used to uniquely identify the | |
| 408 debuggee */ | |
| 409 public synchronized void startServer(String executableName, String coreFileName, | |
| 410 String uniqueID) | |
| 411 throws DebuggerException { | |
| 412 if (debugger != null) { | |
| 413 throw new DebuggerException("Already attached"); | |
| 414 } | |
| 415 if ((executableName == null) || (coreFileName == null)) { | |
| 416 throw new DebuggerException("Both the core file name and Java executable name must be specified"); | |
| 417 } | |
| 418 this.executableName = executableName; | |
| 419 this.coreFileName = coreFileName; | |
| 420 startupMode = CORE_FILE_MODE; | |
| 421 isServer = true; | |
| 422 serverID = uniqueID; | |
| 423 go(); | |
| 424 } | |
| 425 | |
| 426 /** This opens a core file on the local machine and starts a debug | |
| 427 server, allowing remote machines to connect and examine this | |
| 428 core file.*/ | |
| 429 public synchronized void startServer(String executableName, String coreFileName) | |
| 430 throws DebuggerException { | |
| 431 startServer(executableName, coreFileName, null); | |
| 432 } | |
| 433 | |
| 434 /** This may only be called on the server side after startServer() | |
| 435 has been called */ | |
| 436 public synchronized boolean shutdownServer() throws DebuggerException { | |
| 437 if (!isServer) { | |
| 438 throw new DebuggerException("Should not call shutdownServer() for client configuration"); | |
| 439 } | |
| 440 return detachInternal(); | |
| 441 } | |
| 442 | |
| 443 | |
| 444 //-------------------------------------------------------------------------------- | |
| 445 // Internals only below this point | |
| 446 // | |
| 447 | |
| 448 private boolean detachInternal() { | |
| 449 if (debugger == null) { | |
| 450 return false; | |
| 451 } | |
| 452 if (canInteractWithJava()) { | |
| 453 jvmdi.detach(); | |
| 454 jvmdi = null; | |
| 455 } | |
| 456 boolean retval = true; | |
| 457 if (!isServer) { | |
| 458 VM.shutdown(); | |
| 459 } | |
| 460 // We must not call detach() if we are a client and are connected | |
| 461 // to a remote debugger | |
| 462 Debugger dbg = null; | |
| 463 DebuggerException ex = null; | |
| 464 if (isServer) { | |
| 465 try { | |
| 466 RMIHelper.unbind(serverID); | |
| 467 } | |
| 468 catch (DebuggerException de) { | |
| 469 ex = de; | |
| 470 } | |
| 471 dbg = debugger; | |
| 472 } else { | |
| 473 if (startupMode != REMOTE_MODE) { | |
| 474 dbg = debugger; | |
| 475 } | |
| 476 } | |
| 477 if (dbg != null) { | |
| 478 retval = dbg.detach(); | |
| 479 } | |
| 480 | |
| 481 debugger = null; | |
| 482 machDesc = null; | |
| 483 db = null; | |
| 484 if (ex != null) { | |
| 485 throw(ex); | |
| 486 } | |
| 487 return retval; | |
| 488 } | |
| 489 | |
| 490 private void go() { | |
| 491 setupDebugger(); | |
| 492 javaMode = setupVM(); | |
| 493 } | |
| 494 | |
| 495 private void setupDebugger() { | |
| 496 if (startupMode != REMOTE_MODE) { | |
| 497 // | |
| 498 // Local mode (client attaching to local process or setting up | |
| 499 // server, but not client attaching to server) | |
| 500 // | |
| 501 | |
| 502 try { | |
| 503 os = PlatformInfo.getOS(); | |
| 504 cpu = PlatformInfo.getCPU(); | |
| 505 } | |
| 506 catch (UnsupportedPlatformException e) { | |
| 507 throw new DebuggerException(e); | |
| 508 } | |
| 509 fileSep = System.getProperty("file.separator"); | |
| 510 | |
| 511 if (os.equals("solaris")) { | |
| 512 setupDebuggerSolaris(); | |
| 513 } else if (os.equals("win32")) { | |
| 514 setupDebuggerWin32(); | |
| 515 } else if (os.equals("linux")) { | |
| 516 setupDebuggerLinux(); | |
| 517 } else { | |
| 518 // Add support for more operating systems here | |
| 519 throw new DebuggerException("Operating system " + os + " not yet supported"); | |
| 520 } | |
| 521 if (isServer) { | |
| 522 RemoteDebuggerServer remote = null; | |
| 523 try { | |
| 524 remote = new RemoteDebuggerServer(debugger); | |
| 525 } | |
| 526 catch (RemoteException rem) { | |
| 527 throw new DebuggerException(rem); | |
| 528 } | |
| 529 RMIHelper.rebind(serverID, remote); | |
| 530 } | |
| 531 } else { | |
| 532 // | |
| 533 // Remote mode (client attaching to server) | |
| 534 // | |
| 535 | |
| 536 // Create and install a security manager | |
| 537 | |
| 538 // FIXME: currently commented out because we were having | |
| 539 // security problems since we're "in the sun.* hierarchy" here. | |
| 540 // Perhaps a permissive policy file would work around this. In | |
| 541 // the long run, will probably have to move into com.sun.*. | |
| 542 | |
| 543 // if (System.getSecurityManager() == null) { | |
| 544 // System.setSecurityManager(new RMISecurityManager()); | |
| 545 // } | |
| 546 | |
| 547 connectRemoteDebugger(); | |
| 548 } | |
| 549 } | |
| 550 | |
| 551 private boolean setupVM() { | |
| 552 // We need to instantiate a HotSpotTypeDataBase on both the client | |
| 553 // and server machine. On the server it is only currently used to | |
| 554 // configure the Java primitive type sizes (which we should | |
| 555 // consider making constant). On the client it is used to | |
| 556 // configure the VM. | |
| 557 | |
| 558 try { | |
| 559 if (os.equals("solaris")) { | |
| 560 db = new HotSpotTypeDataBase(machDesc, new HotSpotSolarisVtblAccess(debugger, jvmLibNames), | |
| 561 debugger, jvmLibNames); | |
| 562 } else if (os.equals("win32")) { | |
| 563 db = new HotSpotTypeDataBase(machDesc, new Win32VtblAccess(debugger, jvmLibNames), | |
| 564 debugger, jvmLibNames); | |
| 565 } else if (os.equals("linux")) { | |
| 566 db = new HotSpotTypeDataBase(machDesc, new LinuxVtblAccess(debugger, jvmLibNames), | |
| 567 debugger, jvmLibNames); | |
| 568 } else { | |
| 569 throw new DebuggerException("OS \"" + os + "\" not yet supported (no VtblAccess implemented yet)"); | |
| 570 } | |
| 571 } | |
| 572 catch (NoSuchSymbolException e) { | |
| 573 e.printStackTrace(); | |
| 574 return false; | |
| 575 } | |
| 576 | |
| 577 if (startupMode != REMOTE_MODE) { | |
| 578 // Configure the debugger with the primitive type sizes just obtained from the VM | |
| 579 debugger.configureJavaPrimitiveTypeSizes(db.getJBooleanType().getSize(), | |
| 580 db.getJByteType().getSize(), | |
| 581 db.getJCharType().getSize(), | |
| 582 db.getJDoubleType().getSize(), | |
| 583 db.getJFloatType().getSize(), | |
| 584 db.getJIntType().getSize(), | |
| 585 db.getJLongType().getSize(), | |
| 586 db.getJShortType().getSize()); | |
| 587 } | |
| 588 | |
| 589 if (!isServer) { | |
| 590 // Do not initialize the VM on the server (unnecessary, since it's | |
| 591 // instantiated on the client) | |
| 592 VM.initialize(db, debugger); | |
| 593 } | |
| 594 | |
| 595 try { | |
| 596 jvmdi = new ServiceabilityAgentJVMDIModule(debugger, saLibNames); | |
| 597 if (jvmdi.canAttach()) { | |
| 598 jvmdi.attach(); | |
| 599 jvmdi.setCommandTimeout(6000); | |
| 600 debugPrintln("Attached to Serviceability Agent's JVMDI module."); | |
| 601 // Jog VM to suspended point with JVMDI module | |
| 602 resume(); | |
| 603 suspendJava(); | |
| 604 suspend(); | |
| 605 debugPrintln("Suspended all Java threads."); | |
| 606 } else { | |
| 607 debugPrintln("Could not locate SA's JVMDI module; skipping attachment"); | |
| 608 jvmdi = null; | |
| 609 } | |
| 610 } catch (Exception e) { | |
| 611 e.printStackTrace(); | |
| 612 jvmdi = null; | |
| 613 } | |
| 614 | |
| 615 return true; | |
| 616 } | |
| 617 | |
| 618 //-------------------------------------------------------------------------------- | |
| 619 // OS-specific debugger setup/connect routines | |
| 620 // | |
| 621 | |
| 622 // | |
| 623 // Solaris | |
| 624 // | |
| 625 | |
| 626 private void setupDebuggerSolaris() { | |
| 627 setupJVMLibNamesSolaris(); | |
| 3939 | 628 ProcDebuggerLocal dbg = new ProcDebuggerLocal(null, true); |
| 629 debugger = dbg; | |
| 630 attachDebugger(); | |
| 0 | 631 |
| 3939 | 632 // Set up CPU-dependent stuff |
| 633 if (cpu.equals("x86")) { | |
| 634 machDesc = new MachineDescriptionIntelX86(); | |
| 635 } else if (cpu.equals("sparc")) { | |
| 636 int addressSize = dbg.getRemoteProcessAddressSize(); | |
| 637 if (addressSize == -1) { | |
| 638 throw new DebuggerException("Error occurred while trying to determine the remote process's address size"); | |
| 0 | 639 } |
| 640 | |
| 3939 | 641 if (addressSize == 32) { |
| 642 machDesc = new MachineDescriptionSPARC32Bit(); | |
| 643 } else if (addressSize == 64) { | |
| 644 machDesc = new MachineDescriptionSPARC64Bit(); | |
| 0 | 645 } else { |
| 3939 | 646 throw new DebuggerException("Address size " + addressSize + " is not supported on SPARC"); |
| 0 | 647 } |
| 3939 | 648 } else if (cpu.equals("amd64")) { |
| 649 machDesc = new MachineDescriptionAMD64(); | |
| 650 } else { | |
| 651 throw new DebuggerException("Solaris only supported on sparc/sparcv9/x86/amd64"); | |
| 652 } | |
| 0 | 653 |
| 3939 | 654 dbg.setMachineDescription(machDesc); |
| 0 | 655 } |
| 656 | |
| 657 private void connectRemoteDebugger() throws DebuggerException { | |
| 658 RemoteDebugger remote = | |
| 659 (RemoteDebugger) RMIHelper.lookup(debugServerID); | |
| 660 debugger = new RemoteDebuggerClient(remote); | |
| 661 machDesc = ((RemoteDebuggerClient) debugger).getMachineDescription(); | |
| 662 os = debugger.getOS(); | |
| 663 if (os.equals("solaris")) { | |
| 664 setupJVMLibNamesSolaris(); | |
| 665 } else if (os.equals("win32")) { | |
| 666 setupJVMLibNamesWin32(); | |
| 667 } else if (os.equals("linux")) { | |
| 668 setupJVMLibNamesLinux(); | |
| 669 } else { | |
| 670 throw new RuntimeException("Unknown OS type"); | |
| 671 } | |
| 672 | |
| 673 cpu = debugger.getCPU(); | |
| 674 } | |
| 675 | |
| 676 private void setupJVMLibNamesSolaris() { | |
| 677 jvmLibNames = new String[] { "libjvm.so", "libjvm_g.so", "gamma_g" }; | |
| 678 saLibNames = new String[] { "libsa.so", "libsa_g.so" }; | |
| 679 } | |
| 680 | |
| 681 // | |
| 682 // Win32 | |
| 683 // | |
| 684 | |
| 685 private void setupDebuggerWin32() { | |
| 686 setupJVMLibNamesWin32(); | |
| 687 | |
| 688 if (cpu.equals("x86")) { | |
| 689 machDesc = new MachineDescriptionIntelX86(); | |
| 690 } else if (cpu.equals("amd64")) { | |
| 691 machDesc = new MachineDescriptionAMD64(); | |
| 692 } else if (cpu.equals("ia64")) { | |
| 693 machDesc = new MachineDescriptionIA64(); | |
| 694 } else { | |
| 695 throw new DebuggerException("Win32 supported under x86, amd64 and ia64 only"); | |
| 696 } | |
| 697 | |
| 698 // Note we do not use a cache for the local debugger in server | |
| 699 // mode; it will be taken care of on the client side (once remote | |
| 700 // debugging is implemented). | |
| 701 | |
| 3939 | 702 debugger = new WindbgDebuggerLocal(machDesc, !isServer); |
| 0 | 703 |
| 704 attachDebugger(); | |
| 705 } | |
| 706 | |
| 707 private void setupJVMLibNamesWin32() { | |
| 708 jvmLibNames = new String[] { "jvm.dll", "jvm_g.dll" }; | |
| 709 saLibNames = new String[] { "sa.dll", "sa_g.dll" }; | |
| 710 } | |
| 711 | |
| 712 // | |
| 713 // Linux | |
| 714 // | |
| 715 | |
| 716 private void setupDebuggerLinux() { | |
| 717 setupJVMLibNamesLinux(); | |
| 718 | |
| 719 if (cpu.equals("x86")) { | |
| 720 machDesc = new MachineDescriptionIntelX86(); | |
| 721 } else if (cpu.equals("ia64")) { | |
| 722 machDesc = new MachineDescriptionIA64(); | |
| 723 } else if (cpu.equals("amd64")) { | |
| 724 machDesc = new MachineDescriptionAMD64(); | |
| 725 } else if (cpu.equals("sparc")) { | |
| 726 if (LinuxDebuggerLocal.getAddressSize()==8) { | |
| 727 machDesc = new MachineDescriptionSPARC64Bit(); | |
| 728 } else { | |
| 729 machDesc = new MachineDescriptionSPARC32Bit(); | |
| 730 } | |
| 731 } else { | |
| 732 throw new DebuggerException("Linux only supported on x86/ia64/amd64/sparc/sparc64"); | |
| 733 } | |
| 734 | |
| 735 // Note we do not use a cache for the local debugger in server | |
| 736 // mode; it will be taken care of on the client side (once remote | |
| 737 // debugging is implemented). | |
| 738 | |
| 739 debugger = new LinuxDebuggerLocal(machDesc, !isServer); | |
| 740 attachDebugger(); | |
| 741 } | |
| 742 | |
| 743 private void setupJVMLibNamesLinux() { | |
| 744 // same as solaris | |
| 745 setupJVMLibNamesSolaris(); | |
| 746 } | |
| 747 | |
| 748 /** Convenience routine which should be called by per-platform | |
| 749 debugger setup. Should not be called when startupMode is | |
| 750 REMOTE_MODE. */ | |
| 751 private void attachDebugger() { | |
| 752 if (startupMode == PROCESS_MODE) { | |
| 753 debugger.attach(pid); | |
| 754 } else if (startupMode == CORE_FILE_MODE) { | |
| 755 debugger.attach(executableName, coreFileName); | |
| 756 } else { | |
| 757 throw new DebuggerException("Should not call attach() for startupMode == " + startupMode); | |
| 758 } | |
| 759 } | |
| 760 } |