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
25namespace art {
26
27extern "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
46extern "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