Mercurial > hg > truffle
annotate agent/src/share/classes/sun/jvm/hotspot/runtime/Threads.java @ 4008:8187c94a9a87
7093690: JSR292: SA-JDI AssertionFailure: Expected raw sp likely got real sp, value was
Reviewed-by: kvn, twisti
author | never |
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date | Mon, 17 Oct 2011 11:00:41 -0700 |
parents | f08d439fab8c |
children | 78d2ae5ab35b |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 2000, 2011, 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.runtime; | |
26 | |
27 import java.util.*; | |
28 import sun.jvm.hotspot.debugger.*; | |
29 import sun.jvm.hotspot.types.*; | |
30 import sun.jvm.hotspot.runtime.solaris_sparc.SolarisSPARCJavaThreadPDAccess; | |
31 import sun.jvm.hotspot.runtime.solaris_x86.SolarisX86JavaThreadPDAccess; | |
32 import sun.jvm.hotspot.runtime.solaris_amd64.SolarisAMD64JavaThreadPDAccess; | |
33 import sun.jvm.hotspot.runtime.win32_amd64.Win32AMD64JavaThreadPDAccess; | |
34 import sun.jvm.hotspot.runtime.win32_x86.Win32X86JavaThreadPDAccess; | |
35 import sun.jvm.hotspot.runtime.win32_ia64.Win32IA64JavaThreadPDAccess; | |
36 import sun.jvm.hotspot.runtime.linux_x86.LinuxX86JavaThreadPDAccess; | |
37 import sun.jvm.hotspot.runtime.linux_ia64.LinuxIA64JavaThreadPDAccess; | |
38 import sun.jvm.hotspot.runtime.linux_amd64.LinuxAMD64JavaThreadPDAccess; | |
39 import sun.jvm.hotspot.runtime.linux_sparc.LinuxSPARCJavaThreadPDAccess; | |
3960 | 40 import sun.jvm.hotspot.runtime.bsd_x86.BsdX86JavaThreadPDAccess; |
41 import sun.jvm.hotspot.runtime.bsd_amd64.BsdAMD64JavaThreadPDAccess; | |
0 | 42 import sun.jvm.hotspot.utilities.*; |
43 | |
44 public class Threads { | |
45 private static JavaThreadFactory threadFactory; | |
46 private static AddressField threadListField; | |
47 private static VirtualConstructor virtualConstructor; | |
48 private static JavaThreadPDAccess access; | |
49 | |
50 static { | |
51 VM.registerVMInitializedObserver(new Observer() { | |
52 public void update(Observable o, Object data) { | |
53 initialize(VM.getVM().getTypeDataBase()); | |
54 } | |
55 }); | |
56 } | |
57 | |
58 private static synchronized void initialize(TypeDataBase db) { | |
59 Type type = db.lookupType("Threads"); | |
60 | |
61 threadListField = type.getAddressField("_thread_list"); | |
62 | |
63 // Instantiate appropriate platform-specific JavaThreadFactory | |
64 String os = VM.getVM().getOS(); | |
65 String cpu = VM.getVM().getCPU(); | |
66 | |
67 access = null; | |
68 // FIXME: find the platform specific PD class by reflection? | |
69 if (os.equals("solaris")) { | |
70 if (cpu.equals("sparc")) { | |
71 access = new SolarisSPARCJavaThreadPDAccess(); | |
72 } else if (cpu.equals("x86")) { | |
73 access = new SolarisX86JavaThreadPDAccess(); | |
74 } else if (cpu.equals("amd64")) { | |
75 access = new SolarisAMD64JavaThreadPDAccess(); | |
76 } | |
77 } else if (os.equals("win32")) { | |
78 if (cpu.equals("x86")) { | |
79 access = new Win32X86JavaThreadPDAccess(); | |
80 } else if (cpu.equals("amd64")) { | |
81 access = new Win32AMD64JavaThreadPDAccess(); | |
82 } else if (cpu.equals("ia64")) { | |
83 access = new Win32IA64JavaThreadPDAccess(); | |
84 } | |
85 } else if (os.equals("linux")) { | |
86 if (cpu.equals("x86")) { | |
87 access = new LinuxX86JavaThreadPDAccess(); | |
88 } else if (cpu.equals("ia64")) { | |
89 access = new LinuxIA64JavaThreadPDAccess(); | |
90 } else if (cpu.equals("amd64")) { | |
91 access = new LinuxAMD64JavaThreadPDAccess(); | |
92 } else if (cpu.equals("sparc")) { | |
93 access = new LinuxSPARCJavaThreadPDAccess(); | |
94 } | |
3960 | 95 } else if (os.equals("bsd")) { |
96 if (cpu.equals("x86")) { | |
97 access = new BsdX86JavaThreadPDAccess(); | |
98 } else if (cpu.equals("amd64")) { | |
99 access = new BsdAMD64JavaThreadPDAccess(); | |
100 } | |
0 | 101 } |
102 | |
103 if (access == null) { | |
104 throw new RuntimeException("OS/CPU combination " + os + "/" + cpu + | |
105 " not yet supported"); | |
106 } | |
107 | |
108 virtualConstructor = new VirtualConstructor(db); | |
109 // Add mappings for all known thread types | |
110 virtualConstructor.addMapping("JavaThread", JavaThread.class); | |
111 if (!VM.getVM().isCore()) { | |
112 virtualConstructor.addMapping("CompilerThread", CompilerThread.class); | |
113 } | |
114 // for now, use JavaThread itself. fix it later with appropriate class if needed | |
115 virtualConstructor.addMapping("SurrogateLockerThread", JavaThread.class); | |
116 virtualConstructor.addMapping("JvmtiAgentThread", JvmtiAgentThread.class); | |
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117 virtualConstructor.addMapping("ServiceThread", ServiceThread.class); |
0 | 118 } |
119 | |
120 public Threads() { | |
121 } | |
122 | |
123 /** NOTE: this returns objects of type JavaThread, CompilerThread, | |
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124 JvmtiAgentThread, and ServiceThread. |
0 | 125 The latter four are subclasses of the former. Most operations |
126 (fetching the top frame, etc.) are only allowed to be performed on | |
127 a "pure" JavaThread. For this reason, {@link | |
128 sun.jvm.hotspot.runtime.JavaThread#isJavaThread} has been | |
129 changed from the definition in the VM (which returns true for | |
130 all of these thread types) to return true for JavaThreads and | |
131 false for the three subclasses. FIXME: should reconsider the | |
132 inheritance hierarchy; see {@link | |
133 sun.jvm.hotspot.runtime.JavaThread#isJavaThread}. */ | |
134 public JavaThread first() { | |
135 Address threadAddr = threadListField.getValue(); | |
136 if (threadAddr == null) { | |
137 return null; | |
138 } | |
139 | |
140 return createJavaThreadWrapper(threadAddr); | |
141 } | |
142 | |
143 /** Routine for instantiating appropriately-typed wrapper for a | |
144 JavaThread. Currently needs to be public for OopUtilities to | |
145 access it. */ | |
146 public JavaThread createJavaThreadWrapper(Address threadAddr) { | |
147 try { | |
148 JavaThread thread = (JavaThread)virtualConstructor.instantiateWrapperFor(threadAddr); | |
149 thread.setThreadPDAccess(access); | |
150 return thread; | |
151 } catch (Exception e) { | |
152 throw new RuntimeException("Unable to deduce type of thread from address " + threadAddr + | |
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153 " (expected type JavaThread, CompilerThread, ServiceThread, JvmtiAgentThread, or SurrogateLockerThread)", e); |
0 | 154 } |
155 } | |
156 | |
157 /** Memory operations */ | |
158 public void oopsDo(AddressVisitor oopVisitor) { | |
159 // FIXME: add more of VM functionality | |
160 for (JavaThread thread = first(); thread != null; thread = thread.next()) { | |
161 thread.oopsDo(oopVisitor); | |
162 } | |
163 } | |
164 | |
165 // refer to Threads::owning_thread_from_monitor_owner | |
166 public JavaThread owningThreadFromMonitor(Address o) { | |
167 if (o == null) return null; | |
168 for (JavaThread thread = first(); thread != null; thread = thread.next()) { | |
169 if (o.equals(thread.threadObjectAddress())) { | |
170 return thread; | |
171 } | |
172 } | |
173 | |
174 for (JavaThread thread = first(); thread != null; thread = thread.next()) { | |
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175 if (thread.isLockOwned(o)) |
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176 return thread; |
0 | 177 } |
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178 return null; |
0 | 179 } |
180 | |
181 public JavaThread owningThreadFromMonitor(ObjectMonitor monitor) { | |
182 return owningThreadFromMonitor(monitor.owner()); | |
183 } | |
184 | |
185 // refer to Threads::get_pending_threads | |
186 // Get list of Java threads that are waiting to enter the specified monitor. | |
187 public List getPendingThreads(ObjectMonitor monitor) { | |
188 List pendingThreads = new ArrayList(); | |
189 for (JavaThread thread = first(); thread != null; thread = thread.next()) { | |
190 if (thread.isCompilerThread()) { | |
191 continue; | |
192 } | |
193 ObjectMonitor pending = thread.getCurrentPendingMonitor(); | |
194 if (monitor.equals(pending)) { | |
195 pendingThreads.add(thread); | |
196 } | |
197 } | |
198 return pendingThreads; | |
199 } | |
200 | |
201 // Get list of Java threads that have called Object.wait on the specified monitor. | |
202 public List getWaitingThreads(ObjectMonitor monitor) { | |
203 List pendingThreads = new ArrayList(); | |
204 for (JavaThread thread = first(); thread != null; thread = thread.next()) { | |
205 ObjectMonitor waiting = thread.getCurrentWaitingMonitor(); | |
206 if (monitor.equals(waiting)) { | |
207 pendingThreads.add(thread); | |
208 } | |
209 } | |
210 return pendingThreads; | |
211 } | |
212 | |
213 // FIXME: add other accessors | |
214 } |