1 /* 2 * Copyright (c) 2002, 2003, Oracle and/or its affiliates. All rights reserved. 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.windbg.x86; 26 27 import sun.jvm.hotspot.debugger.*; 28 import sun.jvm.hotspot.debugger.x86.*; 29 import sun.jvm.hotspot.debugger.windbg.*; 30 31 class WindbgX86Thread implements ThreadProxy { 32 private WindbgDebugger debugger; 33 private long sysId; 34 private boolean gotID; 35 private long id; 36 37 /** The address argument must be the address of the HANDLE of the 38 desired thread in the target process. */ 39 WindbgX86Thread(WindbgDebugger debugger, Address addr) { 40 this.debugger = debugger; 41 // FIXME: size of data fetched here should be configurable. 42 // However, making it so would produce a dependency on the "types" 43 // package from the debugger package, which is not desired. 44 45 // another hack here is that we use sys thread id instead of handle. 46 // windbg can't get details based on handles it seems. 47 // I assume that osThread_win32 thread struct has _thread_id (which 48 // sys thread id) just after handle field. 49 50 this.sysId = (int) addr.addOffsetTo(debugger.getAddressSize()).getCIntegerAt(0, 4, true); 51 gotID = false; 52 } 53 54 WindbgX86Thread(WindbgDebugger debugger, long sysId) { 55 this.debugger = debugger; 56 this.sysId = sysId; 57 gotID = false; 58 } 59 60 public ThreadContext getContext() throws IllegalThreadStateException { 61 long[] data = debugger.getThreadIntegerRegisterSet(getThreadID()); 62 WindbgX86ThreadContext context = new WindbgX86ThreadContext(debugger); 63 for (int i = 0; i < data.length; i++) { 64 context.setRegister(i, data[i]); 65 } 66 return context; 67 } 68 69 public boolean canSetContext() throws DebuggerException { 70 return false; 71 } 72 73 public void setContext(ThreadContext thrCtx) 74 throws IllegalThreadStateException, DebuggerException { 75 throw new DebuggerException("Unimplemented"); 76 } 77 78 public boolean equals(Object obj) { 79 if ((obj == null) || !(obj instanceof WindbgX86Thread)) { 80 return false; 81 } 82 83 return (((WindbgX86Thread) obj).getThreadID() == getThreadID()); 84 } 85 86 public int hashCode() { 87 return (int) getThreadID(); 88 } 89 90 public String toString() { 91 return Long.toString(getThreadID()); 92 } 93 94 /** Retrieves the thread ID of this thread by examining the Thread 95 Information Block. */ 96 private long getThreadID() { 97 if (!gotID) { 98 id = debugger.getThreadIdFromSysId(sysId); 99 } 100 101 return id; 102 } 103 }