Mercurial > hg > truffle
annotate agent/src/share/classes/sun/jvm/hotspot/debugger/win32/Win32Thread.java @ 1913:3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
Summary: Allow CONSTANT_InvokeDynamic nodes to have any number of extra operands.
Reviewed-by: twisti
| author | jrose |
|---|---|
| date | Sat, 30 Oct 2010 13:08:23 -0700 |
| parents | c18cbe5936b8 |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* |
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6941466: Oracle rebranding changes for Hotspot repositories
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2 * Copyright (c) 2001, 2004, Oracle and/or its affiliates. All rights reserved. |
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| 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 |
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6941466: Oracle rebranding changes for Hotspot repositories
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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.win32; | |
| 26 | |
| 27 import sun.jvm.hotspot.debugger.*; | |
| 28 import sun.jvm.hotspot.debugger.x86.*; | |
| 29 | |
| 30 class Win32Thread implements ThreadProxy { | |
| 31 private Win32Debugger debugger; | |
| 32 private int handle; | |
| 33 private boolean mustDuplicate; | |
| 34 private boolean gotID; | |
| 35 private int id; | |
| 36 | |
| 37 /** The address argument must be the address of the HANDLE of the | |
| 38 desired thread in the target process. */ | |
| 39 Win32Thread(Win32Debugger 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 this.handle = (int) addr.getCIntegerAt(0, 4, true); | |
| 45 // Thread handles in the target process must be duplicated before | |
| 46 // fetching their contexts | |
| 47 mustDuplicate = true; | |
| 48 gotID = false; | |
| 49 } | |
| 50 | |
| 51 /** The integer argument must be the value of a HANDLE received from | |
| 52 the "threadlist" operation. */ | |
| 53 Win32Thread(Win32Debugger debugger, long handle) { | |
| 54 this.debugger = debugger; | |
| 55 this.handle = (int) handle; | |
| 56 mustDuplicate = false; | |
| 57 gotID = false; | |
| 58 } | |
| 59 | |
| 60 public ThreadContext getContext() throws IllegalThreadStateException { | |
| 61 if (!debugger.isSuspended()) { | |
| 62 throw new IllegalThreadStateException("Target process must be suspended"); | |
| 63 } | |
| 64 long[] data = debugger.getThreadIntegerRegisterSet(handle, mustDuplicate); | |
| 65 Win32ThreadContext context = new Win32ThreadContext(debugger); | |
| 66 for (int i = 0; i < data.length; i++) { | |
| 67 context.setRegister(i, data[i]); | |
| 68 } | |
| 69 return context; | |
| 70 } | |
| 71 | |
| 72 public boolean canSetContext() throws DebuggerException { | |
| 73 return true; | |
| 74 } | |
| 75 | |
| 76 public void setContext(ThreadContext thrCtx) | |
| 77 throws IllegalThreadStateException, DebuggerException { | |
| 78 if (!debugger.isSuspended()) { | |
| 79 throw new IllegalThreadStateException("Target process must be suspended"); | |
| 80 } | |
| 81 X86ThreadContext context = (X86ThreadContext) thrCtx; | |
| 82 long[] data = new long[X86ThreadContext.NPRGREG]; | |
| 83 for (int i = 0; i < data.length; i++) { | |
| 84 data[i] = context.getRegister(i); | |
| 85 } | |
| 86 debugger.setThreadIntegerRegisterSet(handle, mustDuplicate, data); | |
| 87 } | |
| 88 | |
| 89 public boolean equals(Object obj) { | |
| 90 if ((obj == null) || !(obj instanceof Win32Thread)) { | |
| 91 return false; | |
| 92 } | |
| 93 | |
| 94 return (((Win32Thread) obj).getThreadID() == getThreadID()); | |
| 95 } | |
| 96 | |
| 97 public int hashCode() { | |
| 98 return getThreadID(); | |
| 99 } | |
| 100 | |
| 101 public String toString() { | |
| 102 return Integer.toString(getThreadID()); | |
| 103 } | |
| 104 | |
| 105 /** Retrieves the thread ID of this thread by examining the Thread | |
| 106 Information Block. */ | |
| 107 private int getThreadID() { | |
| 108 if (!gotID) { | |
| 109 try { | |
| 110 // Get thread context | |
| 111 X86ThreadContext context = (X86ThreadContext) getContext(); | |
| 112 // Get LDT entry for FS register | |
| 113 Win32LDTEntry ldt = | |
| 114 debugger.getThreadSelectorEntry(handle, | |
| 115 mustDuplicate, | |
| 116 (int) context.getRegister(X86ThreadContext.FS)); | |
| 117 // Get base address of segment = Thread Environment Block (TEB) | |
| 118 Address teb = debugger.newAddress(ldt.getBase()); | |
| 119 // Thread ID is at offset 0x24 | |
| 120 id = (int) teb.getCIntegerAt(0x24, 4, true); | |
| 121 gotID = true; | |
| 122 } catch (AddressException e) { | |
| 123 throw new DebuggerException(e); | |
| 124 } | |
| 125 } | |
| 126 | |
| 127 return id; | |
| 128 } | |
| 129 } |