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:

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$ cd PATH_YOUR_PROJECT
$ cd bootloader/uboot
$ ./mk kvim4 --avb2 --vab

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 Linux Kernel:

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$ ./mk kvim4 -v 5.4 -jN
Note
  • Replace N with the actual number of threads on your own computer

Build Android:

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

Gernerate images in this step:

  • out/target/product/TARGET/update.img
Note
  • VIM4 compiling Android will not compile the Linux Kernel at the same time as VIM3.
  • Replace N with the actual number of threads on your own computer
  • Replace TARGET_LUNCH to your lunch select.
    • For VIM4, it’s kvim4-userdebug.

Made your own compiled script demo:

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$ vim demo.sh
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#!/bin/bash

#build U-Boot
if [ "$1" == 'u' ] || [ "$1" == 'n' ]; then	
	echo "build U-Boot"
	cd bootloader/uboot
	./mk kvim4 --avb2 --vab 
	cd -
fi

#build Kernel
if [ "$1" == 'k' ] || [ "$1" == 'n' ]; then
	echo "build Kernel"
if [ "$2" == 'n' ] || [ "$1" == 'n' ]; then
	make distclean
fi	
	./mk kvim4 -v 5.4 -j100
fi

#build Android
if [ "$1" == 'a' ] || [ "$1" == 'n' ]; then
	echo "build Android"
if [ "$2" == 'n' ] || [ "$1" == 'n' ]; then
	make clean
fi	 
	. build/envsetup.sh 
	lunch kvim4-userdebug 
	make installclean
	#make -j80 otapackage
	make -j80
fi
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#build U-Boot
$ ./demo.sh u

#build Kernel
$ ./demo.sh k

#build Android
$ ./demo.sh a

#build all
$ ./demo.sh n

See Also

Next