1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
|
/*
* Copyright (c) 2004, 2013, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*
*/
package sun.jvm.hotspot.tools;
import java.io.*;
import sun.jvm.hotspot.utilities.*;
public class JMap extends Tool {
public JMap(int m) {
mode = m;
}
public JMap() {
this(MODE_PMAP);
}
protected boolean needsJavaPrefix() {
return false;
}
public String getName() {
return "jmap";
}
protected String getCommandFlags() {
return "-heap|-heap:format=b|-histo|-clstats|-finalizerinfo";
}
protected void printFlagsUsage() {
System.out.println(" <no option>\tto print same info as Solaris pmap");
System.out.println(" -heap\tto print java heap summary");
System.out.println(" -heap:format=b\tto dump java heap in hprof binary format");
System.out.println(" -histo\tto print histogram of java object heap");
System.out.println(" -clstats\tto print class loader statistics");
System.out.println(" -finalizerinfo\tto print information on objects awaiting finalization");
super.printFlagsUsage();
}
public static final int MODE_HEAP_SUMMARY = 0;
public static final int MODE_HISTOGRAM = 1;
public static final int MODE_CLSTATS = 2;
public static final int MODE_PMAP = 3;
public static final int MODE_HEAP_GRAPH_HPROF_BIN = 4;
public static final int MODE_HEAP_GRAPH_GXL = 5;
public static final int MODE_FINALIZERINFO = 6;
public void run() {
Tool tool = null;
switch (mode) {
case MODE_HEAP_SUMMARY:
tool = new HeapSummary();
break;
case MODE_HISTOGRAM:
tool = new ObjectHistogram();
break;
case MODE_CLSTATS:
tool = new ClassLoaderStats();
break;
case MODE_PMAP:
tool = new PMap();
break;
case MODE_HEAP_GRAPH_HPROF_BIN:
writeHeapHprofBin();
return;
case MODE_HEAP_GRAPH_GXL:
writeHeapGXL();
return;
case MODE_FINALIZERINFO:
tool = new FinalizerInfo();
break;
default:
usage();
break;
}
tool.setAgent(getAgent());
tool.setDebugeeType(getDebugeeType());
tool.run();
}
public static void main(String[] args) {
int mode = MODE_PMAP;
if (args.length > 1 ) {
String modeFlag = args[0];
boolean copyArgs = true;
if (modeFlag.equals("-heap")) {
mode = MODE_HEAP_SUMMARY;
} else if (modeFlag.equals("-histo")) {
mode = MODE_HISTOGRAM;
} else if (modeFlag.equals("-permstat")) {
mode = MODE_CLSTATS;
} else if (modeFlag.equals("-clstats")) {
mode = MODE_CLSTATS;
} else if (modeFlag.equals("-finalizerinfo")) {
mode = MODE_FINALIZERINFO;
} else {
int index = modeFlag.indexOf("-heap:format=");
if (index != -1) {
String format = modeFlag.substring(1 + modeFlag.indexOf('='));
if (format.equals("b")) {
mode = MODE_HEAP_GRAPH_HPROF_BIN;
} else if (format.equals("x")) {
mode = MODE_HEAP_GRAPH_GXL;
} else {
System.err.println("unknown heap format:" + format);
return;
}
} else {
copyArgs = false;
}
}
if (copyArgs) {
String[] newArgs = new String[args.length - 1];
for (int i = 0; i < newArgs.length; i++) {
newArgs[i] = args[i + 1];
}
args = newArgs;
}
}
JMap jmap = new JMap(mode);
jmap.start(args);
jmap.stop();
}
public boolean writeHeapHprofBin(String fileName) {
try {
HeapGraphWriter hgw = new HeapHprofBinWriter();
hgw.write(fileName);
System.out.println("heap written to " + fileName);
return true;
} catch (IOException exp) {
System.err.println(exp.getMessage());
return false;
}
}
public boolean writeHeapHprofBin() {
return writeHeapHprofBin("heap.bin");
}
private boolean writeHeapGXL(String fileName) {
try {
HeapGraphWriter hgw = new HeapGXLWriter();
hgw.write(fileName);
System.out.println("heap written to " + fileName);
return true;
} catch (IOException exp) {
System.err.println(exp.getMessage());
return false;
}
}
public boolean writeHeapGXL() {
return writeHeapGXL("heap.xml");
}
private int mode;
}
|
