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 public class Main { 18 public static void main(String[] args) { 19 System.loadLibrary(args[0]); 20 if (!hasJit()) { 21 return; 22 } 23 ensureJitCompiled(Object.class, "toString"); 24 transitionJitFromZygote(); 25 deoptimizeBootImage(); 26 if (hasJitCompiledEntrypoint(Object.class, "toString")) { 27 throw new Error("Expected Object.toString to be deoptimized"); 28 } 29 } 30 31 private static native boolean hasJit(); 32 private static native void ensureJitCompiled(Class<?> cls, String name); 33 private static native boolean hasJitCompiledEntrypoint(Class<?> cls, String name); 34 private static native void deoptimizeBootImage(); 35 private static native void transitionJitFromZygote(); 36 } 37
