Android LOCAL_MODULE_TAGS 选项说明

最新推荐文章于 2024-11-27 11:32:20 发布

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本文详细介绍了Android系统中不同编译类型（eng、user、userdebug）的特点与区别，包括它们各自安装的模块标签、系统属性设置及adb默认状态等。

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http://blog.youkuaiyun.com/evilcode/archive/2011/06/01/6459299.aspx

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

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.