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--- products:sbc:edge2:development:android:build-android [2022/07/15 23:46]
nick
+++ products:sbc:edge2:development:android:build-android [2022/09/29 23:00] (current)
haylrn [Building]
@@ Line 1: / Line 1: @@
-{{indexmenu_n>3}}
+{{indexmenu_n>15}}
 ====== Edge2 Build Android ======
+===== Introduction =====
+This document mainly introduces how to compile the Android source code. You will learn how to compile different versions of Android source code.
+===== Preparation =====
+  * [[http://source.android.com/source/initializing.html]]
+  * [[.download-android-source-code]]
+  * [[.install-toolchains]]
+===== Building =====
+<WRAP important >
+Before you start to build, make sure you have done all the Preperations listed above.
+</WRAP>
+Build ALL:
+```shell
+$ cd PATH_YOUR_PROJECT
+$ source build/envsetup.sh
+$ lunch kedge2-userdebug
+$ ./build.sh -AUCKu
+```
+You can also distribute compilations:
+Build U-Boot:
+```shell
+$ cd PATH_YOUR_PROJECT
+$ source build/envsetup.sh
+$ lunch kedge2-userdebug
+$ ./build.sh -Uu
+```
+Build kernel:
+```shell
+$ cd PATH_YOUR_PROJECT
+$ source build/envsetup.sh
+$ lunch kedge2-userdebug
+$ ./build.sh -CKu
+```
+Build Android:
+```shell
+$ cd PATH_YOUR_PROJECT
+$ source build/envsetup.sh
+$ lunch kedge2-userdebug
+$ ./build.sh -Au
+```
+<WRAP info >
+ Modify the file build.sh ''BUILD_JOBS=16'' as the number you want when you run ''BUILD_JOBS=n''.
+</WRAP>
+After executing ''./build.sh -u'', generate a complete firmware package in the ''rockdev/Image-xxx/directory''(xxx is the product name of the specific lunch).
+```
+rockdev/Image-xxx/
+├── boot-debug.img
+├── boot.img
+├── config.cfg
+├── dtbo.img
+├── MiniLoaderAll.bin
+├── misc.img
+├── parameter.txt
+├── pcba_small_misc.img
+├── pcba_whole_misc.img
+├── recovery.img
+├── resource.img
+├── super.img
+├── uboot.img
+├── update.img
+└── vbmeta.img
+```
+Packing update.img:
+```shell
+$ cd PATH_YOUR_PROJECT
+$ source build/envsetup.sh
+$ lunch kedge2-userdebug
+$ ./build.sh -u
+```
+<WRAP important >
+After compiling, you need to reload ''update.img'' when flashing.
+</WRAP>
+===== See Also =====
+  * [[/products/sbc/edge2/install-os/install-os-into-emmc-via-usb-tool|]]
+  * [[/products/sbc/edge2/install-os/install-os-into-external-storage|]]

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