[GUIDE] Build AOSP for zerofltexx by Astrubale

Today I'll show you how to build your AOSP rom from source for zerofltexx.

This trips your KNOX warranty counter!
Your warranty is now void.
I am not responsible for bricked devices, dead SD cards,
thermonuclear war, or you getting fired because the alarm app failed.
I am not responsible for any damage that may happen to your device. Do this at your risk.
XDA-Developers.com and I are not responsible for any problem.
I am not responsible for any damage to hardware, objects, people, animals and / or data loss.
I'm not responsible for theft data or hacker's attacks.
I'm not responsible for system vulnerabilities.
I do not assume any responsibility, do this at your risk.


WHAT DO YOU NEED:
- 64 bit PC
- Ubuntu 16.04 (yes, you can use it in virtual machine)
- Good connection
- Patiente
- Brain

SETTING UP ENVIRORMENT
You need to install some packages to start to build your rom.
For install a package use "sudo apt-get install", after install write the package you want to install.

Install this packages in this order.
1.

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android-tools-adb android-tools-fastboot repo

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2.

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bison build-essential curl flex git gnupg gperf libesd0-dev liblz4-tool libncurses5-dev libsdl1.2-dev libwxgtk3.0-dev libxml2 libxml2-utils lzop maven openjdk-8-jdk pngcrush schedtool squashfs-tools xsltproc zip zlib1g-dev

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3.

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g++-multilib gcc-multilib lib32ncurses5-dev lib32readline6-dev lib32z1-dev

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Now you need to setup openjdk-8-jdk because it is not "fully supported".
Add this line to your bashrc

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export EXPERIMENTAL_USE_JAVA8=true

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Reboot your pc.


CREATE DIRECTORIES
Now you need to create two directories, one for your rom source and the other one for download the "repo" binary and make it executable.

1.

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mkdir -p ~/bin

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# executable binary repo.

2.

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mkdir -p ~/android/system

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# rom source code.



SETUP /bin FOLDER
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curl http://ift.tt/1mQuHPR > ~/bin/repo

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# inizialize and download repo.

2.

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chmod a+x ~/bin/repo

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# become it executable.


You can check this by opening "~/.profile" with a text editor and verifying the following code exists (add it if it is missing):

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# set PATH so it includes user's private bin if it exists
if [ -d "$HOME/bin" ] ; then
    PATH="$HOME/bin:$PATH"
fi

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# this will be setup bin folder for compiling.


INITIALIZE SOURCE REPOSITORY (I do this example for CyanogenMod)
1.

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cd ~/android/system/

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# go to the position where you want to download the source, that directory has been created before.

2.

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repo init -u http://ift.tt/1nR8keD -b cm-13.0

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# initialize repository, after -b write the branch that you want to download.

3.

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repo sync

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# this starts to download repository, (it is about 13GB).

Reboot your pc.

LATEST DOWNLOAD
1.

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cd ~/android/system/

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# go inside you repository folder.

2.

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. build/envsetup.sh

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# this will become ready for build, but wait, it's not ready yet.

3.

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breakfast zerofltexx

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# now it downloads necessary files for build for zerofltexx.


4. Go inside /android/system/ and search for "kernel" forlder, if you dont have that create one.

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cd ~/android/system/
mkdir -p ~/kernel/

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5. Go inside ~/android/system/kernel/ and create "samsung" folder

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cd ~/android/system/kernel/
mkdir -p ~/samsung/

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6. Go inside ~/android/system/kernel/samsung/ and create "exynos7420" folder

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cd ~/android/system/kernel/samsung/
mkdir -p ~/exynos7420/

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6. Now download source code of kernel inside ~/android/system/kernel/samsung/exynos7420/


START BUILDING
1.

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cd ~/android/system/

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# go in root folder of your repository.

2.

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. build/envsetup.sh

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# become repository ready for build.

3.

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breakfast zerofltexx

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# cheack dependecies.

4.

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brunch zerofltexx

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# start building.



GET ZIP OF YOUR ROM
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cd ~/android/system/out/target/product/zerofltexx/

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where your rom is.


OPTIZIONAL: TURN ON CACHING FOR SPEED UP YOUR BUILD
1.

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export USE_CCACHE=1

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add this to your bashrc.

2.

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android/system/prebuilts/misc/linux-x86/ccache/ccache -M 50G

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where 50G is 50GB of cache.


Best regards,
Astrubale.

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