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[Q] Android kernel programming

Hi All
I am a newbi to kernel programming , especially to android kernel.
Can you tell me some good places on the net , that can be great sources for getting in touch with that thing.
I want to become familiar with the android kernel , dalvic etc. ( I speak english and german )
thanks in advance.
Sz_gergo

I am too interested in this subject. I am learning slowly as and when I get time.
kernelnewbies.org
Generally good resource for starting out learning linux kernel
(Which is what the android is built off of)
android.git.kernel.org
Android Kernel Source
lwn.net/Kernel/LDD3/
Online guide to driver development among many other related topics.
pdk.android.com
This guide provides an under-the-hood introduction to the Android platform, and is designed for platform developers and manufacturers building Android-powered devices.
Sorry for not providing the links...xda won't allow me to post links since I have less posts.

Android kernel
Dear All
as i understand, the android kernel source, what you can download from Google , should be enough for building a new kernel to some phone.
If i am right, does that mean that the Linux kernel sources are already included?
Or am i totally wrong?
Thanks for your answers

I am also interested in learning the Kernel Development and ROM development. Can Any one Help.

sz_gergo;11673408 begin_of_the_skype_highlighting 11673408 end_of_the_skype_highlighting said:
Dear All
as i understand, the android kernel source, what you can download from Google , should be enough for building a new kernel to some phone.
If i am right, does that mean that the Linux kernel sources are already included?
Or am i totally wrong?
Thanks for your answers
Click to expand...
Click to collapse
I have the answere for the question above.
After i have inspected the Android kernel sources, it came out, that i have been right.The only source you need for creating a new kernel for a phone, is the complete android kernel.
The linux kernel is allready included.
I think if you want to build a kernel, specific for your phone. you have to overwrite the default dirs with the specific sources of your phone. If it is not allready done by others.

Android Kernel
Hi,
We need to distinguish between Linux and Android. Android was forked from Linux, and now those are managed as separate products. Android usually takes the updates from linux, but there are features in Android which Linux refused to get (such as wakelocks).
So the android kernel source includes all needed to build a working kernel.

[Completed] [Q] Develop Custom ROM & Recovery for Logic X3

I would like to develop custom roms and recoveries for the Logic X3. Unfortunately, this device is quite unknown so I can't find any drivers for it
It is currently on Android KitKat 4.4.2, and with its limited internal memory I am limited to the number of apps I can install. I have tried EVERY app/mod this forum and Google has to offer. None works.
I really would like to begin by making a custom recovery for it. Attached is a screenshot of some of its features.
Anyone who can help with this is greatly appreciated.

Hello there
You will find a lot of information in the XDA University pages, especially this one: Getting Started: Building Android From Source
There are lots of resources throughout the XDA forum, for instance this one: [UltimateGUIDE][How-to]Create your Own Custom ROM an easy way|Android Secrets -_- and this one [ GUIDE ] How to Prepare Ubuntu 14.04 LTS Trusty Tahr to Compile Android ROMs
Good luck

What is necessary if I want to compile a ROM?

Hi guys. 2 months ago I've came into Android World deeper than before and now I'm very fascinated. I downloaded linux, all the necessary files to compile a rom but I still don't understand some things.
My device is Redmi Note 2 and I use stock MIUI 7. As we all know mtk and/or xiaomi haven't released kernel sources (6795) so developers have to think hard how to make a rom. And there are my questions. Does kernel source is really necessary? What if I compile rom successfully and then port boot.img from stock? Will it work? However developers made some roms based on LP for this device. And I read that I need device tree and vendor, which doesnt exist for redmi note 2 or I still can't use github.
Second question which I have is: does compiling for 64 bit CPU differ from compiling for 32 bit CPU (like 6592)? If yes, could you give me some tips?
Ohh I think you can understand what I wrote
Thanks in advance and please dont blame me for silly questions

If you are looking to compile roms then you picked the wrong device to do it. They are the worst with kernel source. You can't completely compile a rom but use a patch system that does most of the work.
Yes it is different. There are some Tuts around but they are few as most don't use that type of chip.
If you really want to learn to develop then I would suggest getting a different device. One that respects the copyright and gpl laws.

zelendel said:
If you are looking to compile roms then you picked the wrong device to do it. They are the worst with kernel source. You can't completely compile a rom but use a patch system that does most of the work.
Yes it is different. There are some Tuts around but they are few as most don't use that type of chip.
If you really want to learn to develop then I would suggest getting a different device. One that respects the copyright and gpl laws.
Click to expand...
Click to collapse
Thank you for your advices. I have HTC desire 310 and I found the kernel sources. I know what I'll do in my free time

Monsterlevel said:
Thank you for your advices. I have HTC desire 310 and I found the kernel sources. I know what I'll do in my free time
Click to expand...
Click to collapse
To compile a rom u need kernel source, device tree and proprietary, bye

[Completed] can I make an AOSP in a virtual machine?

Hi everybody!
I am new in this community and I am sorry if a post this thread in the wrong forum.
I want to start making a AOSP or a "custom ROM" for Android, I have some experience with "Linux from scracth" and linux in general, but I think that I still beeing a newbie in OS development.
I really love OS develoment and thats why I want to try with Android. (I know that is very hard, but I am making this for experience)
The AOSP requirements says that I new a Android device and its kernel source. (I am new and I can not post links)
I want to know, if there is any way to make a AOSP or custom ROM in a virtual machine? maybe using google pixel or nexus code?
I have an Android device but I am a complete newbie and I dont want try on real hardware yet.
Thanks for any help!

david_pjimenez said:
Hi everybody!
I am new in this community and I am sorry if a post this thread in the wrong forum.
I want to start making a AOSP or a "custom ROM" for Android, I have some experience with "Linux from scracth" and linux in general, but I think that I still beeing a newbie in OS development.
I really love OS develoment and thats why I want to try with Android. (I know that is very hard, but I am making this for experience)
The AOSP requirements says that I new a Android device and its kernel source. (I am new and I can not post links)
I want to know, if there is any way to make a AOSP or custom ROM in a virtual machine? maybe using google pixel or nexus code?
I have an Android device but I am a complete newbie and I dont want try on real hardware yet.
Thanks for any help!
Click to expand...
Click to collapse
Greetings and welcome to assist. Plenty of devs use a virtual machine to build or even dual boot linux. There are plenty of prebuilt virtual machines at osbox and there are plenty of excellent guides to building in xda university
http://forum.xda-developers.com/general/xda-university
Good Luck and welcome to xda
Sawdoctor

sawdoctor said:
Greetings and welcome to assist. Plenty of devs use a virtual machine to build or even dual boot linux. There are plenty of prebuilt virtual machines at osbox and there are plenty of excellent guides to building in xda university
http://forum.xda-developers.com/general/xda-university
Good Luck and welcome to xda
Sawdoctor
Click to expand...
Click to collapse
Thanks for replying!
I have no problem to install Linux on real hardware, actually I have Arch Linux installed on real hardware and I used as my main OS.
What I want to know is, can I put AOSP or a Custom Android in a Virtual Machine? I mean, modify some code in a custom android and tested in a Virtual Machine?
Thanks for your time and help!

david_pjimenez said:
Thanks for replying!
I have no problem to install Linux on real hardware, actually I have Arch Linux installed on real hardware and I used as my main OS.
What I want to know is, can I put AOSP or a Custom Android in a Virtual Machine? I mean, modify some code in a custom android and tested in a Virtual Machine?
Thanks for your time and help!
Click to expand...
Click to collapse
You mean you want to run a custom rom on a virtual machine on your pc ? I think android studio can do something along these lines

sawdoctor said:
You mean you want to run a custom rom on a virtual machine on your pc ? I think android studio can do something along these lines
Click to expand...
Click to collapse
I mean that I want to modify Android OS to add functions, optimize, maybe modify the UI of the system, learn how Android is programed and that kind of things. I want to modify Android Source Code but I want to tested that code on a Virtual Machine on my PC.
Where can I get Android Source Code or any Custom ROM to start working on it?
Thanks for your help and time!

david_pjimenez said:
I mean that I want to modify Android OS to add functions, optimize, maybe modify the UI of the system, learn how Android is programed and that kind of things. I want to modify Android Source Code but I want to tested that code on a Virtual Machine on my PC.
Where can I get Android Source Code or any Custom ROM to start working on it?
Thanks for your help and time!
Click to expand...
Click to collapse
Here is the link for android studio
https://developer.android.com/studio/index.html#features
For source code you can use cm/aosp or anything opensource. Resurrection remix is quite easy to set up as they have a lot of pre built scripts to help you set everything up
Sent from my SM-N930F using Tapatalk

sawdoctor said:
Here is the link for android studio
https://developer.android.com/studio/index.html#features
For source code you can use cm/aosp or anything opensource. Resurrection remix is quite easy to set up as they have a lot of pre built scripts to help you set everything up
Sent from my SM-N930F using Tapatalk
Click to expand...
Click to collapse
Thanks for your help and time!
You have resolved everything that I needed!

How are LineageOS and TWRP built?

Hello, I am very new to everything. My knowledge is basically limited to using Linux. Could someone tell me where I can find the documentation of how to build TWRP and LineageOS for an unknown phone.
Or tell me what the general process is.
I cannot understand anything, when trying to understand I feel like being faced to a wall and not understanding how the hell it works.
Thanks in advance,
Snow

SnowCode said:
Hello, I am very new to everything. My knowledge is basically limited to using Linux. Could someone tell me where I can find the documentation of how to build TWRP and LineageOS for an unknown phone.
Or tell me what the general process is.
I cannot understand anything, when trying to understand I feel like being faced to a wall and not understanding how the hell it works.
Thanks in advance,
Snow
Click to expand...
Click to collapse
If the source files haven't been released by the OEM, you may be at a dead-end before you begin.
How can I get TWRP for my device? (how to compile TWRP)
We can’t afford to buy every device made and many times certain devices are only available in other countries. TWRP is fully open source, so you can port TWR...
twrp.me
[GUIDE][COMPLETE] Android ROM Development From Source To End
Hello Everyone....:D:D Today I will present you all the ultimate guide for ROM development starting from Source to End. This guide will be applicable to all devices. So lets Start :D What is Android? :rolleyes: Android is an...
forum.xda-developers.com
How to build LineageOS on Windows 10 using WSL 2
XDA Senior Member Uldiniad has published a guide on how to compile Android 10-based LineageOS 17.1 on a Windows 10 PC using WSL 2.
www.xda-developers.com
✦✦✦ [GUIDE] Build LineageOS ✦ How To use Github ✦✦✦
How-to Build LineageOS Introduction These instructions will hopefully assist you to start with a stock device, unlock the bootloader (if necessary), and then download the required tools as well as the very latest source code for LineageOS...
forum.xda-developers.com