1 /*
2 * Copyright (C) 2016 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 "jni.h"
18 #include "mirror/class-inl.h"
19 #include "runtime.h"
20 #include "thread_list.h"
21 #include "thread_state.h"
22 #include "gc/gc_cause.h"
23 #include "gc/scoped_gc_critical_section.h"
24
25 namespace art {
26
Java_Main_deoptimizeAll(JNIEnv * env,jclass cls ATTRIBUTE_UNUSED)27 extern "C" JNIEXPORT void JNICALL Java_Main_deoptimizeAll(
28 JNIEnv* env,
29 jclass cls ATTRIBUTE_UNUSED) {
30 ScopedObjectAccess soa(env);
31 ScopedThreadSuspension sts(Thread::Current(), kWaitingForDeoptimization);
32 gc::ScopedGCCriticalSection gcs(Thread::Current(),
33 gc::kGcCauseInstrumentation,
34 gc::kCollectorTypeInstrumentation);
35 // We need to suspend mutator threads first.
36 ScopedSuspendAll ssa(__FUNCTION__);
37 static bool first = true;
38 if (first) {
39 // We need to enable deoptimization once in order to call DeoptimizeEverything().
40 Runtime::Current()->GetInstrumentation()->EnableDeoptimization();
41 first = false;
42 }
43 Runtime::Current()->GetInstrumentation()->DeoptimizeEverything("test");
44 }
45
Java_Main_undeoptimizeAll(JNIEnv * env,jclass cls ATTRIBUTE_UNUSED)46 extern "C" JNIEXPORT void JNICALL Java_Main_undeoptimizeAll(
47 JNIEnv* env,
48 jclass cls ATTRIBUTE_UNUSED) {
49 ScopedObjectAccess soa(env);
50 ScopedThreadSuspension sts(Thread::Current(), kWaitingForDeoptimization);
51 gc::ScopedGCCriticalSection gcs(Thread::Current(),
52 gc::kGcCauseInstrumentation,
53 gc::kCollectorTypeInstrumentation);
54 // We need to suspend mutator threads first.
55 ScopedSuspendAll ssa(__FUNCTION__);
56 Runtime::Current()->GetInstrumentation()->UndeoptimizeEverything("test");
57 }
58
59 } // namespace art
60