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comparison agent/src/share/classes/sun/jvm/hotspot/runtime/Threads.java @ 8750:39432a1cefdd

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8003348: SA can not read core file on OS Summary: Macosx uses Mach-O file format for binary files, not ELF format. Currently SA works on core files on other platforms, t his change enables SA work on core file generated on Darwin. Reviewed-by: sla, sspitsyn Contributed-by: yumin.qi@oracle.com
author minqi
date Thu, 14 Mar 2013 00:33:08 -0700
parents 5a98bf7d847b
children
comparison
equal deleted inserted replaced
8719:c8b31b461e1a 8750:39432a1cefdd
1 /* 1 /*
2 * Copyright (c) 2000, 2012, Oracle and/or its affiliates. All rights reserved. 2 * Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 * 4 *
5 * This code is free software; you can redistribute it and/or modify it 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 6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. 7 * published by the Free Software Foundation.
40 import sun.jvm.hotspot.utilities.*; 40 import sun.jvm.hotspot.utilities.*;
41 41
42 public class Threads { 42 public class Threads {
43 private static JavaThreadFactory threadFactory; 43 private static JavaThreadFactory threadFactory;
44 private static AddressField threadListField; 44 private static AddressField threadListField;
45 private static CIntegerField numOfThreadsField;
45 private static VirtualConstructor virtualConstructor; 46 private static VirtualConstructor virtualConstructor;
46 private static JavaThreadPDAccess access; 47 private static JavaThreadPDAccess access;
47 48
48 static { 49 static {
49 VM.registerVMInitializedObserver(new Observer() { 50 VM.registerVMInitializedObserver(new Observer() {
55 56
56 private static synchronized void initialize(TypeDataBase db) { 57 private static synchronized void initialize(TypeDataBase db) {
57 Type type = db.lookupType("Threads"); 58 Type type = db.lookupType("Threads");
58 59
59 threadListField = type.getAddressField("_thread_list"); 60 threadListField = type.getAddressField("_thread_list");
61 numOfThreadsField = type.getCIntegerField("_number_of_threads");
60 62
61 // Instantiate appropriate platform-specific JavaThreadFactory 63 // Instantiate appropriate platform-specific JavaThreadFactory
62 String os = VM.getVM().getOS(); 64 String os = VM.getVM().getOS();
63 String cpu = VM.getVM().getCPU(); 65 String cpu = VM.getVM().getCPU();
64 66
100 if (cpu.equals("x86")) { 102 if (cpu.equals("x86")) {
101 access = new BsdX86JavaThreadPDAccess(); 103 access = new BsdX86JavaThreadPDAccess();
102 } else if (cpu.equals("amd64") || cpu.equals("x86_64")) { 104 } else if (cpu.equals("amd64") || cpu.equals("x86_64")) {
103 access = new BsdAMD64JavaThreadPDAccess(); 105 access = new BsdAMD64JavaThreadPDAccess();
104 } 106 }
107 } else if (os.equals("darwin")) {
108 if (cpu.equals("amd64") || cpu.equals("x86_64")) {
109 access = new BsdAMD64JavaThreadPDAccess();
110 }
105 } 111 }
106 112
107 if (access == null) { 113 if (access == null) {
108 throw new RuntimeException("OS/CPU combination " + os + "/" + cpu + 114 throw new RuntimeException("OS/CPU combination " + os + "/" + cpu +
109 " not yet supported"); 115 " not yet supported");
142 } 148 }
143 149
144 return createJavaThreadWrapper(threadAddr); 150 return createJavaThreadWrapper(threadAddr);
145 } 151 }
146 152
153 public int getNumberOfThreads() {
154 return (int) numOfThreadsField.getValue();
155 }
156
147 /** Routine for instantiating appropriately-typed wrapper for a 157 /** Routine for instantiating appropriately-typed wrapper for a
148 JavaThread. Currently needs to be public for OopUtilities to 158 JavaThread. Currently needs to be public for OopUtilities to
149 access it. */ 159 access it. */
150 public JavaThread createJavaThreadWrapper(Address threadAddr) { 160 public JavaThread createJavaThreadWrapper(Address threadAddr) {
151 try { 161 try {