1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22/*
23 * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
24 * Use is subject to license terms.
25 */
26
27import org.opensolaris.os.dtrace.*;
28
29/**
30 * Regression for bug 6413280 lookupKernelFunction() and
31 * lookupUserFunction() truncate last character.
32 */
33public class TestFunctionLookup {
34    static final String kernelLookupProgram = "sdt:::callout-start { " +
35           "@[((callout_t *)arg0)->c_func] = count(); }";
36    static final String userLookupProgram = "pid$target::f2:entry { " +
37           "@[arg0] = count(); }";
38
39    public static void
40    main(String[] args)
41    {
42	if (args.length != 1) {
43	    System.err.println("usage: java TestFunctionLookup <command>");
44	    System.exit(1);
45	}
46	String cmd = args[0];
47
48	Consumer consumer = new LocalConsumer();
49	try {
50	    consumer.open();
51	    consumer.compile(kernelLookupProgram);
52	    consumer.enable();
53	    consumer.go();
54	    Aggregate a;
55	    Number address;
56	    String f;
57	    boolean done = false;
58	    for (int i = 0; (i < 20) && !done; ++i) {
59		Thread.currentThread().sleep(100);
60		a = consumer.getAggregate();
61		for (Aggregation agg : a.getAggregations()) {
62		    for (Tuple tuple : agg.asMap().keySet()) {
63			address = (Number)tuple.get(0).getValue();
64			if (address instanceof Integer) {
65			    int addr = (Integer)address;
66			    f = consumer.lookupKernelFunction(addr);
67			} else {
68			    long addr = (Long)address;
69			    f = consumer.lookupKernelFunction(addr);
70			}
71			if (f.equals("genunix`cv_wakeup")) {
72			    System.out.println(f);
73			    done = true;
74			}
75		    }
76		}
77	    }
78	    consumer.close();
79	} catch (Exception e) {
80	    e.printStackTrace();
81	    System.exit(1);
82	}
83
84	consumer = new LocalConsumer();
85	try {
86	    consumer.open();
87	    int pid = consumer.createProcess(cmd);
88	    consumer.compile(userLookupProgram);
89	    consumer.enable();
90	    consumer.go();
91	    Thread.currentThread().sleep(500);
92	    Aggregate a = consumer.getAggregate();
93	    Number address;
94	    String f;
95	    for (Aggregation agg : a.getAggregations()) {
96		for (Tuple tuple : agg.asMap().keySet()) {
97		    address = (Number)tuple.get(0).getValue();
98		    if (address instanceof Integer) {
99			int addr = (Integer)address;
100			f = consumer.lookupUserFunction(pid, addr);
101		    } else {
102			long addr = (Long)address;
103			f = consumer.lookupUserFunction(pid, addr);
104		    }
105		    System.out.println(f);
106		}
107	    }
108	    consumer.close();
109	} catch (Exception e) {
110	    e.printStackTrace();
111	    System.exit(1);
112	}
113    }
114}
115