Mercurial > hg > graal-jvmci-8
annotate agent/src/share/classes/sun/jvm/hotspot/debugger/windbg/amd64/WindbgAMD64Thread.java @ 7974:43badbe2717a
8000973: SA on windows thread inspection is broken
Summary: After bug 7161732, On Windows SA could not find correct address of thread_id of OSThread since _thread_id moved to end of the class . The presupposition of the address is following thread handle no longer stands. Fix by adding thread_id field to OSThread and getting the address directly from OSThread.
Reviewed-by: nloodin, sspitsyn
Contributed-by: yumin.qi@oracle.com
| author | minqi |
|---|---|
| date | Thu, 31 Jan 2013 17:43:01 -0800 |
| parents | c18cbe5936b8 |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 7974 | 2 * Copyright (c) 2005, 2013, 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.windbg.amd64; | |
| 26 | |
| 27 import sun.jvm.hotspot.debugger.*; | |
| 28 import sun.jvm.hotspot.debugger.amd64.*; | |
| 29 import sun.jvm.hotspot.debugger.windbg.*; | |
| 30 | |
| 31 class WindbgAMD64Thread implements ThreadProxy { | |
| 32 private WindbgDebugger debugger; | |
| 33 private long sysId; | |
| 34 private boolean gotID; | |
| 35 private long id; | |
| 36 | |
| 7974 | 37 // The address argument must be the address of the OSThread::_thread_id |
| 0 | 38 WindbgAMD64Thread(WindbgDebugger debugger, Address addr) { |
| 39 this.debugger = debugger; | |
| 7974 | 40 this.sysId = (long)addr.getCIntegerAt(0, 4, true); |
| 41 gotID = false; | |
| 0 | 42 } |
| 43 | |
| 44 WindbgAMD64Thread(WindbgDebugger debugger, long sysId) { | |
| 45 this.debugger = debugger; | |
| 46 this.sysId = sysId; | |
| 47 gotID = false; | |
| 48 } | |
| 49 | |
| 50 public ThreadContext getContext() throws IllegalThreadStateException { | |
| 51 long[] data = debugger.getThreadIntegerRegisterSet(getThreadID()); | |
| 52 WindbgAMD64ThreadContext context = new WindbgAMD64ThreadContext(debugger); | |
| 53 for (int i = 0; i < data.length; i++) { | |
| 54 context.setRegister(i, data[i]); | |
| 55 } | |
| 56 return context; | |
| 57 } | |
| 58 | |
| 59 public boolean canSetContext() throws DebuggerException { | |
| 60 return false; | |
| 61 } | |
| 62 | |
| 63 public void setContext(ThreadContext thrCtx) | |
| 64 throws IllegalThreadStateException, DebuggerException { | |
| 65 throw new DebuggerException("Unimplemented"); | |
| 66 } | |
| 67 | |
| 68 public boolean equals(Object obj) { | |
| 69 if ((obj == null) || !(obj instanceof WindbgAMD64Thread)) { | |
| 70 return false; | |
| 71 } | |
| 72 | |
| 73 return (((WindbgAMD64Thread) obj).getThreadID() == getThreadID()); | |
| 74 } | |
| 75 | |
| 76 public int hashCode() { | |
| 77 return (int) getThreadID(); | |
| 78 } | |
| 79 | |
| 80 public String toString() { | |
| 81 return Long.toString(getThreadID()); | |
| 82 } | |
| 83 | |
| 84 /** Retrieves the thread ID of this thread by examining the Thread | |
| 85 Information Block. */ | |
| 86 private long getThreadID() { | |
| 87 if (!gotID) { | |
| 88 id = debugger.getThreadIdFromSysId(sysId); | |
| 89 } | |
| 90 | |
| 91 return id; | |
| 92 } | |
| 93 } |