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一、healthd裁剪
1. system/core/rootdir/init.rc
屏蔽healthd服务
#service healthd /system/bin/healthd
# class core
# critical
# group root system wakelock
二、app删除
2. 查看看是否有Contacts和Email应用: 有
3. 去掉build/make/target/product/core.mk中PRODUCT_PACKAGES下的Emailt和Contacts并编译看系统中是否还这两个应用: 还有
4. 删除out下对应设备目录下的system/app/Email和system/priv-app/Contacts目录,并编译看系统中是否还这两个应用: 还有
5. 把out目录里的system.img删除掉,再试: 不行
6. 把out/target/common/obj/Apps目录下Email和Contacts相关目录删除再试: 还是有
7. 重启一下系统试试: 不行
8. 把修改core.mk中,把mmsservice也删除掉试试:不行
9. 把源码中packages/apps中的Contacts和Email目录删除,Email目录保留emailcommon目录:好了,这次没了
此阶段结论:其实第3步后make clean一下也可以,但是不想make clean
10. 把Calendar、ExactCalculator(calculator2)、Music、Gallery、Gallery2、SoundRecorder、TvSettings全删掉
三、mediaserver裁剪
在frameworks/av/media/mediaserver/mediaserver.rc中,将mediaserver启动项屏蔽掉
编译后系统可以启动,但是没有壁纸了,设置壁纸也没作用
四、framework服务删减
1、VibratorService删除
屏蔽掉SystemServer.java中启动这个服务的代码
traceBeginAndSlog(“StartVibratorService”);
vibrator = new VibratorService(context);
ServiceManager.addService(“vibrator”, vibrator);
traceEnd();
删除后,应用调用Vibrator时不会崩溃,log会提示no vibrator service
下面这一段也屏蔽掉:
traceBeginAndSlog(“MakeVibratorServiceReady”);
try {
vibrator.systemReady();
} catch (Throwable e) {
reportWtf(“making Vibrator Service ready”, e);
}
traceEnd();
2. ConsumerIrService删除
在system/core/rootdir/init.rc中on boot节点中增加如下代码:
setprop config.disable_consumerir true
3. LockSettingsService
在SystemServer.java中屏蔽LOCK_SETTINGS_SERVICE_CLASS的启动
traceBeginAndSlog(“StartLockSettingsService”);
try {
mSystemServiceManager.startService(LOCK_SETTINGS_SERVICE_CLASS);
lockSettings = ILockSettings.Stub.asInterface(
ServiceManager.getService(“lock_settings”));
} catch (Throwable e) {
reportWtf(“starting LockSettingsService service”, e);
}
traceEnd();
屏蔽bootPhase对lockSetting的检查:
traceBeginAndSlog(“StartBootPhaseLockSettingsReady”);
mSystemServiceManager.startBootPhase(SystemService.PHASE_LOCK_SETTINGS_READY);
traceEnd();
4. MmsServiceBroker
删除SystemServer中
traceBeginAndSlog(“StartMmsService”);
mmsService = mSystemServiceManager.startService(MmsServiceBroker.class);
traceEnd();
第二个地方
traceBeginAndSlog(“MakeMmsServiceReady”);
try {
if (mmsServiceF != null) mmsServiceF.systemRunning();
} catch (Throwable e) {
reportWtf(“Notifying MmsService running”, e);
}
traceEnd();
5. TextServicesManagerService
禁止拼写检查服务
public boolean isSpellCheckerEnabled() {
//default from true to false, by liuderu
return getBoolean(Settings.Secure.SPELL_CHECKER_ENABLED, false);
}
6. AccountManagerService裁剪
SystemServer.java去掉相关代码
traceBeginAndSlog(“StartAccountManagerService”);
mSystemServiceManager.startService(ACCOUNT_SERVICE_CLASS);
traceEnd();
ContentService.java
private SyncManager getSyncManager() {
if (SystemProperties.getBoolean(“config.disable_network”, false)) {
return null;
}
synchronized(mSyncManagerLock) {
try {
// Try to create the SyncManager, return null if it fails (e.g. the disk is full).
if (mSyncManager == null) mSyncManager = new SyncManager(mContext, mFactoryTest);
} catch (SQLiteException e) {
Log.e(TAG, “Can’t create SyncManager”, e);
}
return mSyncManager;
}
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