1 /*
2 * Copyright (C) 2019 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 #include <stdio.h>
18
19 #include "android-base/macros.h"
20
21 #include "jni.h"
22 #include "jvmti.h"
23 #include "scoped_local_ref.h"
24
25 // Test infrastructure
26 #include "jni_helper.h"
27 #include "jvmti_helper.h"
28 #include "test_env.h"
29
30 namespace art {
31 namespace Test1962MultiThreadEvents {
32
33 struct BreakpointData {
34 jobject events;
35 jmethodID target;
36 };
cbMethodEntry(jvmtiEnv * jvmti,JNIEnv * env,jthread thread,jmethodID method,jboolean was_exception ATTRIBUTE_UNUSED,jvalue val ATTRIBUTE_UNUSED)37 void cbMethodEntry(jvmtiEnv* jvmti,
38 JNIEnv* env,
39 jthread thread,
40 jmethodID method,
41 jboolean was_exception ATTRIBUTE_UNUSED,
42 jvalue val ATTRIBUTE_UNUSED) {
43 BreakpointData* data = nullptr;
44 if (JvmtiErrorToException(
45 env, jvmti, jvmti->GetThreadLocalStorage(thread, reinterpret_cast<void**>(&data)))) {
46 return;
47 }
48 if (data->target != method) {
49 return;
50 }
51 jclass klass = env->FindClass("art/Test1962");
52 jmethodID handler =
53 env->GetStaticMethodID(klass, "HandleEvent", "(Ljava/lang/Thread;Ljava/util/List;)V");
54 CHECK(data != nullptr);
55 env->CallStaticVoidMethod(klass, handler, thread, data->events);
56 }
57
Java_art_Test1962_setupTest(JNIEnv * env,jclass klass ATTRIBUTE_UNUSED)58 extern "C" JNIEXPORT void JNICALL Java_art_Test1962_setupTest(JNIEnv* env,
59 jclass klass ATTRIBUTE_UNUSED) {
60 jvmtiCapabilities caps{
61 .can_generate_method_exit_events = 1,
62 };
63 if (JvmtiErrorToException(env, jvmti_env, jvmti_env->AddCapabilities(&caps))) {
64 return;
65 }
66 jvmtiEventCallbacks cb{
67 .MethodExit = cbMethodEntry,
68 };
69 JvmtiErrorToException(env, jvmti_env, jvmti_env->SetEventCallbacks(&cb, sizeof(cb)));
70 }
71
Java_art_Test1962_setupThread(JNIEnv * env,jclass klass ATTRIBUTE_UNUSED,jthread thr,jobject events,jobject target)72 extern "C" JNIEXPORT void JNICALL Java_art_Test1962_setupThread(
73 JNIEnv* env, jclass klass ATTRIBUTE_UNUSED, jthread thr, jobject events, jobject target) {
74 BreakpointData* data = nullptr;
75 if (JvmtiErrorToException(
76 env, jvmti_env, jvmti_env->Allocate(sizeof(*data), reinterpret_cast<uint8_t**>(&data)))) {
77 return;
78 }
79 data->events = env->NewGlobalRef(events);
80 data->target = env->FromReflectedMethod(target);
81 if (JvmtiErrorToException(env, jvmti_env, jvmti_env->SetThreadLocalStorage(thr, data))) {
82 return;
83 }
84 JvmtiErrorToException(
85 env,
86 jvmti_env,
87 jvmti_env->SetEventNotificationMode(JVMTI_ENABLE, JVMTI_EVENT_METHOD_EXIT, thr));
88 }
89
90 } // namespace Test1962MultiThreadEvents
91 } // namespace art
92