android预装应用找不到so库问题

近日接到需求，产品大佬想要在平板上预装第三方应用接到这个平平无奇的需求的时候内心毫无波动我直接给他装到/system/app下吧，毫无难度········紧接着就开始了写Android.mk 然后编译，然后就：连系统都起不来······· log如下：10-17 08:52:30.107 2747 2747 V PackageManager: reconcileAppsDatafornull u0

b178903294

3036人浏览 · 2021-04-04 10:26:00

b178903294 · 2021-04-04 10:26:00 发布

近日接到需求，产品大佬想要在平板上预装第三方应用

接到这个平平无奇的需求的时候内心毫无波动

我直接给他装到/system/app下吧，毫无难度········紧接着就开始了写Android.mk 然后编译，然后就：

连系统都起不来······· log如下：

10-17 08:52:30.107 2747 2747 V PackageManager: reconcileAppsData for null u0 0x3 migrateAppData=true

10-17 08:52:30.160 2747 2747 V PackageManager: reconcileAppsData finished 22 packages

10-17 08:52:30.161 2747 2796 D SystemServerInitThreadPool: Started executing prepareAppData

10-17 08:52:30.163 2747 2796 D SystemServerTimingAsync: AppDataFixup took to complete: 2ms

10-17 08:52:30.212 2747 2747 E System : ******************************************

10-17 08:52:30.213 2747 2747 E System : ************ Failure starting system services

10-17 08:52:30.213 2747 2747 E System : java.lang.RuntimeException: There must be exactly one installer; found [ResolveInfo{70a2edd com.android.packageinstaller/.InstallStart m=0x608000}, ResolveInfo{58b7a52 com.wandoujia.phoenix2/com.pp.assistant.install.installfinish.InstallJumpActivity m=0x608000}]

10-17 08:52:30.213 2747 2747 E System : at com.android.server.pm.PackageManagerService.getRequiredInstallerLPr(PackageManagerService.java:3617)

10-17 08:52:30.213 2747 2747 E System : at com.android.server.pm.PackageManagerService.<init>(PackageManagerService.java:3265)

10-17 08:52:30.213 2747 2747 E System : at com.android.server.pm.PackageManagerService.main(PackageManagerService.java:2360)

10-17 08:52:30.213 2747 2747 E System : at com.android.server.SystemServer.startBootstrapServices(SystemServer.java:648)

10-17 08:52:30.213 2747 2747 E System : at com.android.server.SystemServer.run(SystemServer.java:443)

10-17 08:52:30.213 2747 2747 E System : at com.android.server.SystemServer.main(SystemServer.java:304)

10-17 08:52:30.213 2747 2747 E System : at java.lang.reflect.Method.invoke(Native Method)

10-17 08:52:30.213 2747 2747 E System : at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)

10-17 08:52:30.213 2747 2747 E System : at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:891)

10-17 08:52:30.213 2747 2747 D SystemServerTiming: StartPackageManagerService took to complete: 3524ms

10-17 08:52:30.213 2747 2747 E AndroidRuntime: *** FATAL EXCEPTION IN SYSTEM PROCESS: main

//逼迫二选一

10-17 08:52:30.213 2747 2747 E AndroidRuntime: java.lang.RuntimeException: There must be exactly one installer; found [ResolveInfo{70a2edd com.android.packageinstaller/.InstallStart m=0x608000}, ResolveInfo{58b7a52 com.wandoujia.phoenix2/com.pp.assistant.install.installfinish.InstallJumpActivity m=0x608000}]

10-17 08:52:30.213 2747 2747 E AndroidRuntime: at com.android.server.pm.PackageManagerService.getRequiredInstallerLPr(PackageManagerService.java:3617)

10-17 08:52:30.213 2747 2747 E AndroidRuntime: at com.android.server.pm.PackageManagerService.<init>(PackageManagerService.java:3265)

10-17 08:52:30.213 2747 2747 E AndroidRuntime: at com.android.server.pm.PackageManagerService.main(PackageManagerService.java:2360)

10-17 08:52:30.213 2747 2747 E AndroidRuntime: at com.android.server.SystemServer.startBootstrapServices(SystemServer.java:648)

10-17 08:52:30.213 2747 2747 E AndroidRuntime: at com.android.server.SystemServer.run(SystemServer.java:443)

10-17 08:52:30.213 2747 2747 E AndroidRuntime: at com.android.server.SystemServer.main(SystemServer.java:304)10-17 08:52:30.213 2747 2747 E AndroidRuntime: at java.lang.reflect.Method.invoke(Native Method)

10-17 08:52:30.213 2747 2747 E AndroidRuntime: at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)

10-17 08:52:30.213 2747 2747 E AndroidRuntime: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:891)

10-17 08:52:30.214 2747 2747 E AndroidRuntime: Error reporting crash

10-17 08:52:30.214 2747 2747 E AndroidRuntime: java.lang.NullPointerException: Attempt to invoke interface method 'void android.app.IActivityManager.handleApplicationCrash(android.os.IBinder, android.app.ApplicationErrorReport$ParcelableCrashInfo)' on a null object reference

10-17 08:52:30.214 2747 2747 E AndroidRuntime: at com.android.internal.os.RuntimeInit$KillApplicationHandler.uncaughtException(RuntimeInit.java:143)

10-17 08:52:30.214 2747 2747 E AndroidRuntime: at java.lang.ThreadGroup.uncaughtException(ThreadGroup.java:1068)

10-17 08:52:30.214 2747 2747 E AndroidRuntime: at java.lang.ThreadGroup.uncaughtException(ThreadGroup.java:1063)

10-17 08:52:30.214 2747 2747 E AndroidRuntime: at java.lang.Thread.dispatchUncaughtException(Thread.java:1955)

没想到android也搞当年3Q大战二选一的套路······ 豌豆荚这个流氓声明了installer, 所以系统不允许有两个。但是我们不可能放弃原生的packageinstaller，所以不能装在/system/app目录下

那装在/data目录下吧，然后就去搜索了五花八门预装到/data分区的方法，都要改系统代码······· 想想还是算了，太麻烦了。那就预装到/vendor目录下吧。

所以就在Android.mk中添加：

LOCAL_MODULE_PATH := $(TARGET_OUT_VENDOR)/app

然后编译，烧录，紧接着····

？？？？？？？？

然后看了代码发现：

// Collect ordinary vendor packages.

File vendorAppDir = new File(Environment.getVendorDirectory(), "app");

try {

vendorAppDir = vendorAppDir.getCanonicalFile();

} catch (IOException e) {

// failed to look up canonical path, continue with original one

}

scanDirTracedLI(vendorAppDir,

mDefParseFlags

| PackageParser.PARSE_IS_SYSTEM_DIR,

scanFlags

| SCAN_AS_SYSTEM //系统应用属性

| SCAN_AS_VENDOR,

0);

预装到/vendor/app目录下仍然算是系统应用····· 所以还会和原生的packageinstaller冲突。本着不改系统代码的原则，只能再换其他目录了······· 之后就发现了：

if ((ps.pkgFlags & ApplicationInfo.FLAG_SYSTEM) == 0) {

// M:operator app also is removable and not system flag

if ((!sPmsExt.isRemovableSysApp(ps.name))) {

continue;

}

如上所说在operator目录下的应用非系统应用并且可以卸载，这不就是我们想要的结果吗？？ android 9 预装apk可卸载

修改：

/*

scanDirTracedLI(privilegedVendorAppDir,

        mDefParseFlags

        | PackageParser.PARSE_IS_SYSTEM_DIR,

        scanFlags

        | SCAN_AS_SYSTEM

        | SCAN_AS_VENDOR

        | SCAN_AS_PRIVILEGED,

        0);

*/

scanDirTracedLI(privilegedVendorAppDir,

        mDefParseFlags

        | PackageParser.PARSE_IS_SYSTEM_DIR,

        scanFlags

        | SCAN_AS_VENDOR

        | SCAN_AS_PRIVILEGED,

        0);

这样，将apk预放在  android9-8mm\out\target\product\evk_8mm\vendor\priv-app 下，整编后烧录，

apk已经在系统里面了，而且可以卸载，可以卸载，可以卸载！！！

参考资料：

https://www.jianshu.com/p/992766525cf1

今晚打老唬:mtk 可以放在vendor/operator/app 里面就可以卸载了。需要在如下文件中配置下。 P版本需要添加vendor/mediatek/proprietary/frameworks/base / data/etc/pms_sysapp_removable_vendor_list.txt

不修改系统代码的前提下，那咱们就开开心心的把应用预制到/vendor/operator/app目录下吧，添加：

LOCAL_MODULE_PATH := $(TARGET_OUT_VENDOR)/operator/app

然后编译烧录，结果·······

找不到so库···· 好吧那我就按照大佬的方法提取出来

LOCAL_PATH := $(call my-dir)

include $(CLEAR_VARS)

LOCAL_MODULE := Wandoujia

LOCAL_SRC_FILES := $(LOCAL_MODULE).apk

LOCAL_MODULE_CLASS := APPS

LOCAL_MODULE_TAGS := optional

LOCAL_MODULE_SUFFIX := $(COMMON_ANDROID_PACKAGE_SUFFIX)

LOCAL_CERTIFICATE := PRESIGNED

#LOCAL_DEX_PREOPT := false

LOCAL_PREBUILT_JNI_LIBS= \

lib/armeabi/libalicleaner.so \

lib/armeabi/libanb.so \

lib/armeabi/libbase64encoder_v1_4.so \

lib/armeabi/libc++_shared.so \

lib/armeabi/libcocktail_1.0.0.so \

lib/armeabi/libcrashsdk.so \

lib/armeabi/libdalvikhack.so \

lib/armeabi/libdalvikpatch.so \

lib/armeabi/libfoem.so \

lib/armeabi/libhiddenApiFxxxer.so \

lib/armeabi/libIncrementalUpdate.so \

lib/armeabi/libmmdb.so \

lib/armeabi/libmmkv.so \

lib/armeabi/libpl_droidsonroids_gif.so \

lib/armeabi/libppapkpatchso.so \

lib/armeabi/libppkkdb.so \

lib/armeabi/libpppmtools.so \

lib/armeabi/libppsu.so \

lib/armeabi/libqc-cyt.so \

lib/armeabi/libreleaseCatcher.so \

lib/armeabi/libsgmain.so \

lib/armeabi/libsgsecuritybody.so \

lib/armeabi/libsss.so \

lib/armeabi/libtnet-3.1.9.so \

lib/armeabi/libwdj_udid.so \

lib/armeabi/libweexcore.so \

lib/armeabi/libweexjsb.so \

lib/armeabi/libweexjss.so \

lib/armeabi/libweexjst.so \

lib/armeabi/libweibosdkcore.so

LOCAL_MODULE_PATH := $(TARGET_OUT_VENDOR)/operator/app

include $(BUILD_PREBUILT)

然后再一款设备上就神奇地安装上了，运行没有任何问题

然后产品又说，要在另一款设备上也装上，那我就全部copy过来不就行了？

结果··········

10-16 10:06:50.532 4963 4981 I ActivityManager: Start proc 6520:com.wandoujia.phoenix2:aid/u0a75 for content provider com.wandoujia.phoenix2/com.lib.common.sharedata.PPShareDataContentProvider

10-16 10:06:50.534 6470 6470 W WeexJSBridgeThr: type=1400 audit(0.0:1210): avc: denied { open } for path="/data/app-lib/Wandoujia/libweexjss.so" dev="dm-2" ino=3194905 scontext=u:r:untrusted_app_25:s0:c512,c768 tcontext=u:object_r:system_data_file:s0 tclass=file permissive=0

10-16 10:06:50.535 6470 6519 E weex : weexjss's Path is/vendor/operator/app/Wandoujia/Wandoujia.apk!/lib/armeabi/libweexjss.so

10-16 10:06:50.584 6520 6520 W ia.phoenix2:ai: resources.arsc in APK '/vendor/operator/app/Wandoujia/Wandoujia.apk' is compressed.

10-16 10:06:50.794 4963 4981 I ActivityManager: Start proc 6579:com.wandoujia.phoenix2:channel/u0a75 for broadcast com.wandoujia.phoenix2/com.taobao.accs.EventReceiver

10-16 10:06:50.870 6579 6579 W hoenix2:channe: resources.arsc in APK '/vendor/operator/app/Wandoujia/Wandoujia.apk' is compressed.

10-16 10:06:51.259 4963 5325 W ActivityManager: Unable to start service Intent { pkg=com.wandoujia.phoenix2 cmp=com.wandoujia.phoenix2/com.taobao.accs.ChannelService$KernelService } U=0: not found

10-16 10:06:51.396 6579 6686 I hoenix2:channe: Caused by: java.lang.ClassNotFoundException: Didn't find class "com.ut.mini.IUTApplication" on path: DexPathList[[zip file "/system/framework/android.test.mock.jar", zip file "/system/framework/org.apache.http.legacy.boot.jar", zip file "/system/framework/android.test.runner.jar", zip file "/vendor/operator/app/Wandoujia/Wandoujia.apk"],nativeLibraryDirectories=[/data/app-lib/Wandoujia, /system/fake-libs, /vendor/operator/app/Wandoujia/Wandoujia.apk!/lib/armeabi, /system/lib]]

10-16 10:06:51.397 6579 6686 I hoenix2:channe: Caused by: java.lang.ClassNotFoundException: Didn't find class "com.ut.mini.IUTApplication" on path: DexPathList[[zip file "/system/framework/android.test.mock.jar", zip file "/system/framework/org.apache.http.legacy.boot.jar", zip file "/system/framework/android.test.runner.jar", zip file "/vendor/operator/app/Wandoujia/Wandoujia.apk"],nativeLibraryDirectories=[/data/app-lib/Wandoujia, /system/fake-libs, /vendor/operator/app/Wandoujia/Wandoujia.apk!/lib/armeabi, /system/lib]]

10-16 10:06:51.398 6579 6686 I hoenix2:channe: Caused by: java.lang.ClassNotFoundException: Didn't find class "com.ut.mini.IUTApplication" on path: DexPathList[[zip file "/system/framework/android.test.mock.jar", zip file "/system/framework/org.apache.http.legacy.boot.jar", zip file "/system/framework/android.test.runner.jar", zip file "/vendor/operator/app/Wandoujia/Wandoujia.apk"],nativeLibraryDirectories=[/data/app-lib/Wandoujia, /system/fake-libs, /vendor/operator/app/Wandoujia/Wandoujia.apk!/lib/armeabi, /system/lib]]

10-16 10:06:51.467 6470 6708 I chatty : uid=10075(com.wandoujia.phoenix2) JunkScan-thread identical 4 lines

10-16 10:06:52.294 6470 6519 E weex : findLibJssRealPath /data/user/0/com.wandoujia.phoenix2/cache/libweexjss.so

10-16 10:06:52.295 6470 6519 E weex : getLibJssPath is running /data/user/0/com.wandoujia.phoenix2/cache/libweexjss.so

10-16 10:06:52.296 6470 6519 E WeexCore: g_jssSoPath is /data/user/0/com.wandoujia.phoenix2/cache/libweexjss.so

10-16 10:06:52.974 6520 6520 W Thread-5: type=1400 audit(0.0:1249): avc: denied { open } for path="/data/app-lib/Wandoujia/libsgmain.so" dev="dm-2" ino=3194889 scontext=u:r:untrusted_app_25:s0:c512,c768 tcontext=u:object_r:system_data_file:s0 tclass=file permissive=0

10-16 10:06:52.982 6520 6520 W ia.phoenix2:aid: type=1400 audit(0.0:1250): avc: denied { open } for path="/data/app-lib/Wandoujia/libalicleaner.so" dev="dm-2" ino=3194907 scontext=u:r:untrusted_app_25:s0:c512,c768 tcontext=u:object_r:system_data_file:s0 tclass=file permissive=0

10-16 10:06:53.006 6520 6520 W Thread-7: type=1400 audit(0.0:1251): avc: denied { open } for path="/data/app-lib/Wandoujia/libsgmain.so" dev="dm-2" ino=3194889 scontext=u:r:untrusted_app_25:s0:c512,c768 tcontext=u:object_r:system_data_file:s0 tclass=file permissive=0

10-16 10:06:53.018 6520 6520 W pool-4-thread-1: type=1400 audit(0.0:1252): avc: denied { open } for path="/data/app-lib/Wandoujia/libsgmain.so" dev="dm-2" ino=3194889 scontext=u:r:untrusted_app_25:s0:c512,c768 tcontext=u:object_r:system_data_file:s0 tclass=file permissive=0

10-16 10:06:54.245 4963 4963 W system_server: resources.arsc in APK '/vendor/operator/app/Wandoujia/Wandoujia.apk' is compressed.

奇了怪了，明明代码都是同一套，莫非是供应商做了什么骚操作？？？？看到上面的log并在惊厥下觉得可能是selinux问题，八成是这两个中的一个被改过SElinux, 赶紧搜一搜untrusted_app_25，果然有发现:

device/mediatek/sepolicy/basic/non_plat/untrusted_app.te

#modify_lwf_add

typeattribute system_data_file mlstrustedobject;

allow untrusted_app_27 system_data_file:file r_file_perms;

allow untrusted_app_27 system_data_file:file execute;

allow untrusted_app_25 system_data_file:file r_file_perms;

allow untrusted_app_25 system_data_file:file execute;

#modify_lwf_end

然后就添加上了····· 然后就好了

然后网上一搜发现也有人遇到同样的问题：MTK6757 9.0 APK预置vendor/operator/app 无法正常工作