/* * Copyright (C) 2018 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ public class Main { public static void main(String[] args) { System.loadLibrary(args[0]); if (!hasJit()) { return; } ensureJitCompiled(Object.class, "toString"); transitionJitFromZygote(); deoptimizeBootImage(); if (hasJitCompiledEntrypoint(Object.class, "toString")) { throw new Error("Expected Object.toString to be deoptimized"); } } private static native boolean hasJit(); private static native void ensureJitCompiled(Class<?> cls, String name); private static native boolean hasJitCompiledEntrypoint(Class<?> cls, String name); private static native void deoptimizeBootImage(); private static native void transitionJitFromZygote(); }