JavaCrashSystemHandle
原理流程
当Binder服务端ApplicationThread所在进程(即Crash进程)挂掉后，则Binder客户端能收到相应的死亡通知，从而进入binderDied流程。
AMP.handleApplicationCrash
AMS.handleApplicationCrash
AMS.findAppProcess
AMS.handleApplicationCrashInner
AMS.addErrorToDropBox
AMS.crashApplication
AMS.makeAppCrashingLocked
AMS.startAppProblemLocked
ProcessRecord.stopFreezingAllLocked
ActivityRecord.stopFreezingScreenLocked
WMS.stopFreezingScreenLocked
WMS.stopFreezingDisplayLocked
AMS.handleAppCrashLocked
mUiHandler.sendMessage(SHOW_ERROR_MSG)
Process.killProcess(Process.myPid());
System.exit(10);
其中addErrorToDropBox是将crash的信息输出到目录/data/system/dropbox。例如system_server的dropbox文件名为system_server_crash@xxx.txt (xxx代表的是时间戳)
AMS.handleAppCrashLocked
ASS.handleAppCrashLocked
AS.handleAppCrashLocked
AS.finishCurrentActivityLocked
AMS.removeProcessLocked
ProcessRecord.kill
AMS.handleAppDiedLocked
ASS.handleAppDiedLocked
AMS.cleanUpApplicationRecordLocked
AS.handleAppDiedLocked
AS.removeHistoryRecordsForAppLocked
ASS.resumeTopActivitiesLocked
AS.resumeTopActivityLocked
AS.resumeTopActivityInnerLocked
ASS.finishTopRunningActivityLocked
AS.finishTopRunningActivityLocked
AS.finishActivityLocked