Solve Xposed module list become empty on Android 6.0 Marshmallow

English Version

升级Nexus5 到6.0.1 (M4B30Z, Dec 2016)之后，Xposed的模块列表变成空的了，所有的模块也都失效了。没有xposed，怎么种庄稼。于是我打开logcat看了一眼。

rovo89在xda的QA帖中说一般情况下这个文件会在启用任意一个模块后创建。然而现在它并没有被创建。于是我去建了一个，然后chmod 644以及chown到应用到uid（可以通过启动应用之后ps|grep xposed查看uid，形如u0_a??），重启了一下，再瞄了一眼logcat。

好像哪里不对

想起来Android从萝莉棒开始SELinux就是enforce了，所以大概是这个问题。（我们可以通过dmesg|grep audit来查看被SELinux过滤的各种奇怪操作。）于是看了一下默认的文件context和我们刚创建的文件的context：

那么我们把这个conf/modules.list也改成u:object_r:app_data_file:s0:c512,c768这个context好了

restorecon是toybox中带的一个applet，我们也可以用chcon来手动更改context。

Recently I found module list in Xposed become empty after I upgrade my Nexus5 to 6.0.1 (M4B30Z, Dec 2016). And all the modules are not activating. So I open logcat and see the following:

Rovo89 said on a xda post that this file should be created if any module is activated. But somehow it didn’t do so on my Nexus5. So I create one myself and set correct permission (0644) and uid (you can run the Xposed Installer app and check the uid through ps |grep xposed). Then I reboot and check logcat again:

Looks like it’s still not working.

Then I realise that Android started to set SELinux to enforce from Lollipop (5.0) so this should be the problem. (We can use dmesg|grep audit to check if the problem really related to SELinux. ) I compared a random file under /data/data to the file we just created:

So all we need to do is to change this conf/modules.list to u:object_r:app_data_file:s0:c512,c768 as well

restorecon is a applet shipped with toybox, we can also use chcon to manually set SELinux context.