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1 /*
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2 * Copyright 2005 Sun Microsystems, Inc. All Rights Reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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20 * CA 95054 USA or visit www.sun.com if you need additional information or
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21 * have any questions.
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22 *
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23 */
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24
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25 package sun.jvm.hotspot.debugger.windbg.amd64;
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26
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27 import sun.jvm.hotspot.debugger.*;
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28 import sun.jvm.hotspot.debugger.amd64.*;
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29 import sun.jvm.hotspot.debugger.windbg.*;
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30
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31 class WindbgAMD64Thread implements ThreadProxy {
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32 private WindbgDebugger debugger;
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33 private long sysId;
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34 private boolean gotID;
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35 private long id;
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36
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37 /** The address argument must be the address of the HANDLE of the
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38 desired thread in the target process. */
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39 WindbgAMD64Thread(WindbgDebugger debugger, Address addr) {
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40 this.debugger = debugger;
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41 // FIXME: size of data fetched here should be configurable.
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42 // However, making it so would produce a dependency on the "types"
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43 // package from the debugger package, which is not desired.
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44
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45 // another hack here is that we use sys thread id instead of handle.
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46 // windbg can't get details based on handles it seems.
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47 // I assume that osThread_win32 thread struct has _thread_id (which
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48 // sys thread id) just after handle field.
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49
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50 this.sysId = (int) addr.addOffsetTo(debugger.getAddressSize()).getCIntegerAt(0, 4, true);
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51 gotID = false;
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52 }
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53
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54 WindbgAMD64Thread(WindbgDebugger debugger, long sysId) {
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55 this.debugger = debugger;
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56 this.sysId = sysId;
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57 gotID = false;
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58 }
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59
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60 public ThreadContext getContext() throws IllegalThreadStateException {
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61 long[] data = debugger.getThreadIntegerRegisterSet(getThreadID());
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62 WindbgAMD64ThreadContext context = new WindbgAMD64ThreadContext(debugger);
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63 for (int i = 0; i < data.length; i++) {
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64 context.setRegister(i, data[i]);
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65 }
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66 return context;
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67 }
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68
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69 public boolean canSetContext() throws DebuggerException {
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70 return false;
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71 }
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72
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73 public void setContext(ThreadContext thrCtx)
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74 throws IllegalThreadStateException, DebuggerException {
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75 throw new DebuggerException("Unimplemented");
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76 }
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77
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78 public boolean equals(Object obj) {
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79 if ((obj == null) || !(obj instanceof WindbgAMD64Thread)) {
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80 return false;
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81 }
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82
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83 return (((WindbgAMD64Thread) obj).getThreadID() == getThreadID());
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84 }
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85
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86 public int hashCode() {
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87 return (int) getThreadID();
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88 }
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89
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90 public String toString() {
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91 return Long.toString(getThreadID());
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92 }
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93
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94 /** Retrieves the thread ID of this thread by examining the Thread
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95 Information Block. */
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96 private long getThreadID() {
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97 if (!gotID) {
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98 id = debugger.getThreadIdFromSysId(sysId);
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99 }
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100
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101 return id;
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102 }
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103 }
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