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/*
* 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.
*/
import java.lang.reflect.Field;
import java.lang.reflect.Method;
public class ChildClass {
// This method being synchronized means the SIGQUIT code in ART will call
// FindLocksAtDexPc (we check for the presence of try blocks),
// which triggered a DCHECK of an invariant.
public static synchronized void runTest() throws Exception {
Main m = Foo.mainObject;
SigQuit.doKill();
// Sleep some time to get the kill while executing this method.
Thread.sleep(2);
// The FindLocksAtDexPc method running with the verifier would fail when
// resolving this call, as the verifier didn't register Main from the field
// access above with the current class loader.
Main.staticMethod();
System.out.println("Done");
}
private final static class SigQuit {
private final static int sigquit;
private final static Method kill;
private final static int pid;
static {
int pidTemp = -1;
int sigquitTemp = -1;
Method killTemp = null;
try {
Class<?> osClass = Class.forName("android.system.Os");
Method getpid = osClass.getDeclaredMethod("getpid");
pidTemp = (Integer)getpid.invoke(null);
Class<?> osConstants = Class.forName("android.system.OsConstants");
Field sigquitField = osConstants.getDeclaredField("SIGQUIT");
sigquitTemp = (Integer)sigquitField.get(null);
killTemp = osClass.getDeclaredMethod("kill", int.class, int.class);
} catch (Exception e) {
throw new Error(e);
}
pid = pidTemp;
sigquit = sigquitTemp;
kill = killTemp;
}
public static void doKill() throws Exception {
kill.invoke(null, pid, sigquit);
}
}
}
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