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3960
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1 /*
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2 * Copyright (c) 2002, 2003, Oracle and/or its affiliates. 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 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.
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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.bsd;
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26
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27 import sun.jvm.hotspot.debugger.*;
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28
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29 class BsdThread implements ThreadProxy {
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30 private BsdDebugger debugger;
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31 private int lwp_id;
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32
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33 /** The address argument must be the address of the _thread_id in the
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34 OSThread. It's value is result ::gettid() call. */
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35 BsdThread(BsdDebugger debugger, Address addr) {
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36 this.debugger = debugger;
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37 // FIXME: size of data fetched here should be configurable.
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38 // However, making it so would produce a dependency on the "types"
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39 // package from the debugger package, which is not desired.
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40 this.lwp_id = (int) addr.getCIntegerAt(0, 4, true);
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41 }
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42
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43 BsdThread(BsdDebugger debugger, long id) {
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44 this.debugger = debugger;
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45 this.lwp_id = (int) id;
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46 }
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47
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48 public boolean equals(Object obj) {
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49 if ((obj == null) || !(obj instanceof BsdThread)) {
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50 return false;
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51 }
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52
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53 return (((BsdThread) obj).lwp_id == lwp_id);
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54 }
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55
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56 public int hashCode() {
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57 return lwp_id;
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58 }
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59
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60 public String toString() {
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61 return Integer.toString(lwp_id);
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62 }
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63
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64 public ThreadContext getContext() throws IllegalThreadStateException {
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65 long[] data = debugger.getThreadIntegerRegisterSet(lwp_id);
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66 ThreadContext context = BsdThreadContextFactory.createThreadContext(debugger);
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67 for (int i = 0; i < data.length; i++) {
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68 context.setRegister(i, data[i]);
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69 }
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70 return context;
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71 }
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72
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73 public boolean canSetContext() throws DebuggerException {
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74 return false;
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75 }
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76
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77 public void setContext(ThreadContext context)
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78 throws IllegalThreadStateException, DebuggerException {
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79 throw new DebuggerException("Unimplemented");
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80 }
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81 }
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