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
|
/*
* Copyright (c) 2003, 2018, 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 nsk.jvmti.CompiledMethodLoad;
import java.io.*;
import nsk.share.*;
/**
* This test exercises the JVMTI event <code>CompiledMethodLoad</code>.
* <br>It creates an instance of tested class 'HotClass'. Then special
* method 'hotMethod' is called in a loop in order to be compiled/inlined.
* The CompiledMethodLoad events, if they occur, must be sent only
* during the live phase of the VM execution.
*/
public class compmethload001 {
/* number of interations to provoke method compiling */
final static int ITERATIONS = 10000;
static {
try {
System.loadLibrary("compmethload001");
} catch (UnsatisfiedLinkError ule) {
System.err.println("Could not load \"compmethload001\" library");
System.err.println("java.library.path:"
+ System.getProperty("java.library.path"));
throw ule;
}
}
native int check();
public static void main(String[] argv) {
argv = nsk.share.jvmti.JVMTITest.commonInit(argv);
// produce JCK-like exit status
System.exit(run(argv, System.out) + Consts.JCK_STATUS_BASE);
}
public static int run(String argv[], PrintStream out) {
return new compmethload001().runThis(argv, out);
}
private int runThis(String argv[], PrintStream out) {
HotClass hotCls = new HotClass(ITERATIONS);
hotCls.entryMethod(); /* provoke method compiling */
return check();
}
/**
* Dummy class used only to provoke method compiling/inlining
* and, thus, CompiledMethodLoad event generation.
*/
class HotClass {
StringBuffer strBuf;
int iter;
HotClass(int iter) {
strBuf = new StringBuffer(iter);
this.iter = iter;
}
void entryMethod() {
for (int i=0; i<iter; i++)
hotMethod(i);
}
void hotMethod(int i) {
strBuf.append(Integer.toString(i) + " ");
}
}
}
|
