1 /*
2  * Copyright (C) 2017 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 import java.lang.reflect.Field;
20 import java.lang.reflect.Method;
21 
22 public class Trace {
enableTracing(Class<?> methodClass, Method entryMethod, Method exitMethod, Method fieldAccess, Method fieldModify, Method singleStep, Thread thr)23   public static native void enableTracing(Class<?> methodClass,
24                                           Method entryMethod,
25                                           Method exitMethod,
26                                           Method fieldAccess,
27                                           Method fieldModify,
28                                           Method singleStep,
29                                           Thread thr);
disableTracing(Thread thr)30   public static native void disableTracing(Thread thr);
31 
enableFieldTracing(Class<?> methodClass, Method fieldAccess, Method fieldModify, Thread thr)32   public static void enableFieldTracing(Class<?> methodClass,
33                                         Method fieldAccess,
34                                         Method fieldModify,
35                                         Thread thr) {
36     enableTracing(methodClass, null, null, fieldAccess, fieldModify, null, thr);
37   }
38 
enableMethodTracing(Class<?> methodClass, Method entryMethod, Method exitMethod, Thread thr)39   public static void enableMethodTracing(Class<?> methodClass,
40                                          Method entryMethod,
41                                          Method exitMethod,
42                                          Thread thr) {
43     enableTracing(methodClass, entryMethod, exitMethod, null, null, null, thr);
44   }
45 
enableSingleStepTracing(Class<?> methodClass, Method singleStep, Thread thr)46   public static void enableSingleStepTracing(Class<?> methodClass,
47                                              Method singleStep,
48                                              Thread thr) {
49     enableTracing(methodClass, null, null, null, null, singleStep, thr);
50   }
51 
watchFieldAccess(Field f)52   public static native void watchFieldAccess(Field f);
watchFieldModification(Field f)53   public static native void watchFieldModification(Field f);
watchAllFieldAccesses()54   public static native void watchAllFieldAccesses();
watchAllFieldModifications()55   public static native void watchAllFieldModifications();
56 
57   // the names, arguments, and even line numbers of these functions are embedded in the tests so we
58   // need to add to the bottom and not modify old ones to maintain compat.
enableTracing2(Class<?> methodClass, Method entryMethod, Method exitMethod, Method fieldAccess, Method fieldModify, Method singleStep, Method ThreadStart, Method ThreadEnd, Thread thr)59   public static native void enableTracing2(Class<?> methodClass,
60                                            Method entryMethod,
61                                            Method exitMethod,
62                                            Method fieldAccess,
63                                            Method fieldModify,
64                                            Method singleStep,
65                                            Method ThreadStart,
66                                            Method ThreadEnd,
67                                            Thread thr);
68 }
69