Building Android Source Code

Preparations

Building

Note: Before you start to build, make sure you have done all the Preparations listed above.

Build U-Boot:

$ cd PATH_YOUR_PROJECT
$ cd bootloader/uboot
$ ./mk TARGET

Gernerate images in this step:

  • build/u-boot.bin: for onboard EMMC storage booting
  • build/u-boot.bin.sd.bin: for external TF card booting

Build Android:

$ cd PATH_YOUR_PROJECT
$ source build/envsetup.sh
$ lunch TARGET_LUNCH
$ make -jN otapackage

Gernerate images in this step:

  • out/target/product/TARGET/update.img

Note:

  • Replace N as the number you want when you run ‘make -jN’
  • Replace TARGET_LUNCH to your lunch select.
    • For VIM3, it’s kvim3-userdebug.
    • For VIM3L, it’s kvim3l-userdebug.
  • TARGET should be kvim3 or kvim3l

Build Linux kernel:

When you build the Android Kernel (above), the Linux Kernel will also be built simultaneously.

In some cases, you might want to build the Linux Kernel separately. You can run this script below to do that:

$ make bootimage

See Also