LOCAL_MODULE_TAGS 选项说明

LOCAL_MODULE_TAGS ：=user eng tests optional

user: 指该模块只在user版本下才编译

eng: 指该模块只在eng版本下才编译

tests: 指该模块只在tests版本下才编译

optional:指该模块在所有版本下都编译

如果两次make之间选了不同的编译模式，则需要运行一下make installclean，确保本次make不会用到上次install的文件，也可以运行make clean，不过耗时较长。

eng This is the default flavor. A plain “make” is the same as “make eng”. droid is an alias for 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 “make 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 “make userdebug” The same as user, except:

* Also installs modules tagged with debug.

* ro.debuggable=1

* adb is enabled by default.

Build flavors/types

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 “flavors” or “types” (we need to settle on a real name for these).

eng This is the default flavor. A plain “make ” is the same as “make eng “. droid is an alias for 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 “make 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 “make userdebug ”

The same as user , except:

Also installs modules tagged with debug .

ro.debuggable=1

adb is enabled by default.

If you build one flavor and then want to build another, you should run “make installclean ” between the two makes to guarantee that you don’t pick up files installed by the previous flavor. “make clean ” will also suffice, but it takes a lot longer.