1 /*
2 * Copyright (C) 2018 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
18 #include <cstdio>
19 #include <iostream>
20 #include <mutex>
21 #include <vector>
22
23 #include "android-base/logging.h"
24 #include "android-base/stringprintf.h"
25 #include "jni.h"
26 #include "jvmti.h"
27 #include "scoped_local_ref.h"
28 #include "scoped_utf_chars.h"
29
30 // Test infrastructure
31 #include "jvmti_helper.h"
32 #include "test_env.h"
33
34 namespace art {
35 namespace Test1950UnpreparedTransform {
36
37 jclass kMainClass = nullptr;
38 jmethodID kPrepareFunc = nullptr;
39
ClassLoadCallback(jvmtiEnv * jvmti ATTRIBUTE_UNUSED,JNIEnv * env,jthread thr ATTRIBUTE_UNUSED,jclass klass)40 extern "C" JNIEXPORT void ClassLoadCallback(jvmtiEnv* jvmti ATTRIBUTE_UNUSED,
41 JNIEnv* env,
42 jthread thr ATTRIBUTE_UNUSED,
43 jclass klass) {
44 env->CallStaticVoidMethod(kMainClass, kPrepareFunc, klass);
45 }
46
Java_Main_clearClassLoadHook(JNIEnv * env,jclass main ATTRIBUTE_UNUSED,jthread thr)47 extern "C" JNIEXPORT void JNICALL Java_Main_clearClassLoadHook(
48 JNIEnv* env, jclass main ATTRIBUTE_UNUSED, jthread thr) {
49 JvmtiErrorToException(env,
50 jvmti_env,
51 jvmti_env->SetEventNotificationMode(JVMTI_DISABLE,
52 JVMTI_EVENT_CLASS_LOAD,
53 thr));
54 }
Java_Main_setupClassLoadHook(JNIEnv * env,jclass main,jthread thr)55 extern "C" JNIEXPORT void JNICALL Java_Main_setupClassLoadHook(
56 JNIEnv* env, jclass main, jthread thr) {
57 kMainClass = reinterpret_cast<jclass>(env->NewGlobalRef(main));
58 kPrepareFunc = env->GetStaticMethodID(main, "doClassLoad", "(Ljava/lang/Class;)V");
59 if (env->ExceptionCheck()) {
60 return;
61 }
62 current_callbacks.ClassLoad = ClassLoadCallback;
63 if (JvmtiErrorToException(env,
64 jvmti_env,
65 jvmti_env->SetEventCallbacks(
66 ¤t_callbacks, sizeof(current_callbacks)))) {
67 return;
68 }
69 JvmtiErrorToException(env,
70 jvmti_env,
71 jvmti_env->SetEventNotificationMode(JVMTI_ENABLE,
72 JVMTI_EVENT_CLASS_LOAD,
73 thr));
74 }
75
76 } // namespace Test1950UnpreparedTransform
77 } // namespace art
78