What are steps for debugging android native code?

Question

I've been trying to figure out how an android app is installed by browsing AOSP.

The PackageManagerService.java has the gids for the corresponding permissions by parsing the platform.xml file.

PackageInstallerActivity parses and checks for any existing packages and then invokes the InstallAppProgress

I was able to follow the paths where the package is parsed and validated and PackagerManager.installPackage() method is invoked to install the package. I know this makes a native call to the JNI library. The corresponding aidl file is IPackageManager.aidl.

What I want to know is where can I find the Native cpp code related to this aidl mentioned above?

Answer 1

you may have to follow like somewhat mentioned in below link:
https://groups.google.com/forum/?fromgroups#!topic/android-ndk/_4JNdY_h558 [1]
I would prefer to put debug logs for native code atleast.