Android/Building/Variants

When building for a particular product, it's often useful to have minor variations on what is ultimately the final release build. These are the currently-defined build variants:

eng

This is the default flavor. A plain make is the same as make eng.

• Installs modules tagged with: eng, debug, user, and/or development.
• Installs non-APK modules that have no tags specified.
• Installs APKs according to the product definition files, in addition to tagged APKs.
• ro.secure=0
• ro.debuggable=1
• ro.kernel.android.checkjni=1
• adb is enabled by default.

user

This is the flavor intended to be the final release bits.

• Installs modules tagged with user.
• Installs non-APK modules that have no tags specified.
• Installs APKs according to the product definition files; tags are ignored for APK modules.
• ro.secure=1
• ro.debuggable=0
• adb is disabled by default.

userdebug

The same as user, except:

• Also installs modules tagged with debug.
• ro.debuggable=1
• adb is enabled by default.