03-Android_SDK_Compilation

SDK Overview

Version Information

• Kernel version: 5.4

• Android OS version: 12.0

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Obtaining the SDK Source Code

• Network Disk Download Directory:

1-SDK\Android12.0\
	h618-android12.0-xxxxxxxxxx.tar.gz
# Download the latest dated version.

• Copy the source code archive to the compilation host:

  Notes:

  1. Do not compile the source code in a shared directory.

  2. Do not use the ROOT account to log in to the compilation host.

• Verify file integrity with MD5:

$ md5sum -c *.md5

• Extract the source code archive:

$ tar -zxvf *.tar.gz

After extraction, only the .git folder will be visible. Proceed to the next step to fully restore the source code.

• Restore the source code using Git:

$ git reset --hard

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Initial Compilation Environment Setup

First-time compilation requires environment configuration. Skip this step if the SDK location remains unchanged.

# Navigate to the "longan" directory
$ cd longan
# Execute the configuration command
$ ./build.sh config

Select the following configurations:

Welcome to mkscript setup progress
All available platform:
   0. android
   1. linux
Choice [android]: 0
All available ic:
   0. h618
Choice [h618]: 0
All available board:
   0. ft
   1. p1
   2. p2
   3. p7
   4. p7l
   5. perf1
   6. perf2
   7. perf3
   8. qa
Choice [p2]: 2
All available flash:
   0. default
   1. nor
Choice [default]: 0
All available kern_ver:
   0. linux-5.4
Choice [linux-5.4]: 0
All available arch:
   0. arm
   1. arm64
Choice [arm64]: 1

Return to the previous directory:

$ cd -

Select the Target Board:

$ ./build.sh lunch
will lunch sdk

You're building on Linux
Lunch menu...pick a combo:

1. BoardConfig-kickpi-k2b-tablet.mk
2. BoardConfig-kickpi-k2b-tv.mk
3. BoardConfig-kickpi-k2c-tablet.mk
4. BoardConfig-kickpi-k2c-tv.mk

Which would you like? [0]:

Note: BoardConfig-kickpi-'board'-'desktop'

• board: Options include k2b / k2c

• desktop: Options include tv / tablet

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Compile the Full Image

$ ./build.sh

Output directory: longan/out/h618_android12_p2_uart0.img

Troubleshooting: If the Android compilation fails without clear errors, reduce the parallel build processes in build.sh (e.g., change make -j32 to make -j8 based on your hardware).

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Compile Partition Images Separately

Compile U-Boot Only:

$ ./build.sh uboot

Output directory: longan/out/h618_android12_p2_uart0.img

Compile Kernel Only:

$ ./build.sh kernel

Output directory: longan/out/h618_android12_p2_uart0.img

Compile Android Only:

$ ./build.sh android

Output directory: longan/out/h618_android12_p2_uart0.img

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Configure the Kernel

cd longan
./build.sh menuconfig

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Notes

• Ensure the compilation environment has sufficient disk space and memory.

• Use git pull regularly to update the SDK source code.

• Generated images can be flashed to the target device using tools like PhoenixSuit or Fastboot.