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[AM] Fix system server may killed when monkey crash.
Symptom: monkey crash caused system server killed.
Root Cause: when monkey crash or app crash before process bound,
calling AppErrors.crashApplication will first
clear binder identities, that will caused calling pid / uid
will become with current process (i.e. system server),
so in handleAppCrashInActivityController, when monkey registered
activityController would like to kill crash process,
but not found in AMS (monkey created by app_process)
then using calling pid / uid will become to kill system server.
Solution: add calling pid / uid parameters for
handleAppCrashInActivityController to prevent binder identities
cleared case.
Test: To simulate monkey or app crash before process bound may not easy
by using simple command, but we can write a sample program to
simulate RuntimeInit to call handleApplicationCrash when met
uncauchtException,
Below is test steps in Android 7.1.1 emulator.
1. start emulator
2. after emulater started, use "adb shell am monitor" to set
activityController & monitor process by console.
3. write a .jar program as monkey by below sample code to simulate null
application binder to call handleApplicationCrash() as RuntimeInit:
package com.android.test;
import com.android.internal.os.BaseCommand;
public class SimulateMonkeyCrash extends BaseCommand {
public static void main(String[] args) {
IActivityManager am = ActivityManagerNative.getDefault();
try {
am.handleApplicationCrash(null,
new ApplicationErrorReport.CrashInfo(new Throwable()));
} catch (RemoteException e) {
e.printStackTrace();
}
}
4. write a .sh file named SimulateMonkeyCrash.sh as below:
#
base=/system
export CLASSPATH=$base/framework/SimulateMonkeyCrash.jar
exec app_process $base/bin com.android.test.SimulateMonkeyCrash "$@"
5. let .sh file is executable by "chomod 755".
6. push .jar file into /system/framework & .sh file into /system/bin
7 execute .sh file.
8. activityController will detected program crash in console as below,
press k:
Waiting after crash... available commands:
(c)ontinue: show crash dialog
(k)ill: immediately kill app
(q)uit: finish monitoring
9 you can see system server is crash.
Change-Id: Ibac4d88872f24af109d8e8522ecf5ac72fac0ce0