1 /*
2  * Copyright (C) 2011 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package art;
18 
19 public class Test1936 {
foo()20   public static void foo() {}
21 
NotifyThreadEnd(Thread me)22   public static void NotifyThreadEnd(Thread me) {
23     // Don't actually do anything.
24     foo();
25   }
26 
NotifyMethodEntry(Object o)27   public static void NotifyMethodEntry(Object o) {
28     System.out.println("Entered " + o.toString());
29     Thread me = Thread.currentThread();
30     System.out.println(String.format(
31         "Thread: %s\n" +
32         "  | alive: %b\n" +
33         "  | interrupted: %b\n" +
34         "  | daemon: %b\n" +
35         "  | group: %s\n",
36         me.getName(), me.isAlive(), me.isInterrupted(), me.isDaemon(), me.getThreadGroup()));
37   }
38 
waitForever()39   public static native void waitForever();
setupTracing(Thread target)40   private static void setupTracing(Thread target) throws Exception {
41     Trace.disableTracing(target);
42     Trace.enableTracing2(
43         Test1936.class,
44         Test1936.class.getDeclaredMethod("NotifyMethodEntry", Object.class),
45         /*exit*/null,
46         /*field_access*/null,
47         /*field_modify*/null,
48         /*single_step*/null,
49         /*thread_start*/null,
50         Test1936.class.getDeclaredMethod("NotifyThreadEnd", Thread.class),
51         target);
52   }
53 
54 
run()55   public static void run() throws Exception {
56     Thread t = new Thread(() -> {
57       try {
58         setupTracing(Thread.currentThread());
59         foo();
60       } catch (Exception e) {
61         System.out.println("Caught exception " + e + "!");
62         e.printStackTrace();
63       }
64     }, "test-thread");
65     t.start();
66     t.join();
67   }
68 }
69