Kernel Compilation Guide for LG G4c

compile-kernel-G4c

Kernel Compilation Guide
Author: Vineeth Penugonda

(1) git clone https://github.com/LG-K10/android_kernel_lge_msm8916.git -b cm-14.1
(2) git clone https://android.googlesource.com/platform/prebuilts/gcc/linux-x86/arm/arm-eabi-4.8
(3) sudo gedit ~/.profile. 
    Then, source ~/.profile.

(4) (Add below lines at the end)

# add ARM-EABI Toolchain
if [ -d "<change-this-directory-path>/arm-eabi-4.8/bin" ] ; then
    PATH="<change-this-directory-path>/arm-eabi-4.8/bin:$PATH"
fi

(5) make ARCH=arm CROSS_COMPILE=arm-eabi- mrproper

(6) make ARCH=arm CROSS_COMPILE=arm-eabi- c90_defconfig

(7) make ARCH=arm CROSS_COMPILE=arm-eabi- zImage

(8) make ARCH=arm CROSS_COMPILE=arm-eabi- dtb

Now to get zImage and dtb files, go to:

arch/arm/boot/ folder. ZImage will be in that folder.
zImage is a compressed Kernel image which is decompressed while booting by the bootloader.

arch/arm/boot/dts folder. msm8916-c90.dtb will be in the folder.
DTS files are flattened-device files. They are compiled using the DTC Compiler.