Is there any source/ help/ instruction that I can check out to learn how to design/build Android OS for any supported devices? I would like to learn to see if I can build the firmware for my Eken M0001 using the latest Android version.
i think theunlockr.com has a guide of some sort. i would look there!
Code:
android-dls.com/wiki/index.php?title=Compiling_for_Android
This should get you up and running if you are somewhat familiar with the whole Linux thing. If not I would start out by learning how to compile the kernel and some standard libraries for a regular X86(_64) distro. The approach is pretty much the same, only compiling for android requires a lot more work with cross-compiling and getting a working set of standard libraries for arm.
Oh, and sorry about the link thingie. The administrators of this forum are obviously weak minded and have come up with some totally brain-dead limitations for new users. (A new user is not allowed post links , a good RP system would beat that hands down anytime)
Thanks for the info. I will check those links out.
Related
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.
I have successfully built a AOSP ROM I think.
I now have recovery.img, boot.img, userdata.img, system.img
Is there a way of making a n update.zip with these?
This should be moved to Q & A.
Yes, it's about development BUT, it's a question about development and therefore does not belong here.
Pipsqueak approved this message
Come on man do a Google search. There is information for making AOSP ROMs all over the place.
With that said, I strongly recommend heeding this advice:
cyanogen said:
Here's my advice for those looking to make their own Android ROMs.. Stop. Write an app or two first, learn how the system works from a developer standpoint. Learn some Java. Read the developer documentation. Learn how to use Git. Then learn how to build AOSP from source. Read the porting guides, and learn how the build system works (the links below have almost everything you could possibly want to know). Now try to put your new found skills to work on enhancing the platform by writing code or making theme overlays. And share! And put that **** on your resume. There is a *ton* of information out there but any kind of "step-by-step rom cooking guide" is going to be a complete fail- it's too broad of a subject.
Android Developer Guides: http://d.android.com
Working with AOSP source: http://source.android.com
Platform Developer Guide: http://pdk.android.com
Android Gitweb: http://android.git.kernel.org
Git Ready (Git tips and tricks): http://www.gitready.com/
Building CyanogenMod: http://wiki.cyanogenmod.com/index.php/Building_from_source
How Dexopt works and what are those odex files: http://android.git.kernel.org/?p=pl...bcd225e47b2cc7abb2a366112d3aeb45936;hb=master
The PDK site is absolutely vital if you are going to work on custom ROMs. Read every single page. Twice. Some of the info isn't up to date, but you'll get a really good idea about what goes into actually configuring Android to work on a real device.
Click to expand...
Click to collapse
First post in the Dev section but this seemed to be the place to talk about kernel compilation and module development.
I have twice now, and am working on my third kernel compilation for the purposes of custom module building for the TF700 and the TF201.
The question I have has to do with the compilation process. Every time I have gone through this with the downloadable Asus Kernel zip I run in to several issues. Either missing references in code or portions that won't compile at all. Is this normal for kernel compilations? I would have thought that it would be fully compilable out of the box ( so to speak). Is it ASUS or just android/Linux in general that works out this way?
Is there a better way to do it? Should I use some generic source with the same version numbers? The current source is just not working at all. I am using an Ubuntu distro. Have the cross compile tools etc... but it just fails. I have already resolved two missing definition references and it just keeps on failing in new places
Hopefully this question doesn't offend developers. I have moved from WinPhone to here and want to better my understanding of how this should all work but need to start with some basics before I can make a meaningful contribution.
Thanks.
P.S... I looked and didn't find a "Compiling android kernels for dummies" book
hx4700 Killer said:
I looked and didn't find a "Compiling android kernels for dummies" book
Click to expand...
Click to collapse
"Dummies" doesn't write a book on kernel dev. Too wrapped up in telling people how to download iTunes.....
Use your "Google". And when you find it, Google XDA University.
There, you will find steps for setting a build environment and kernel and cross arm.
Understand, all kernels are different, but a good place to start. Plus, you learn how to use Google. An added bonus.
Oh... and... as an extra bonus, I will move this to Q & A, as this post has no development work attached. :silly:
MD
My question wasn't HOW to cross compile. I have done it.
My question is WHY are there so many errors that need correcting when compiling the ASUS downloadable kernels and if this is typical of the source from any device or just ASUS?
hx4700 Killer said:
The question I have has to do with the compilation process. Every time I have gone through this with the downloadable Asus Kernel zip I run in to several issues. Either missing references in code or portions that won't compile at all.
Click to expand...
Click to collapse
I had to fix exactly one pair of quotes vs. angle brackets somewhere in the RIL - get the patch pack from my kernel and apply the ril include fix. Then it should compile. If not, you are doing something wrong.
Can you post any links or names of everything ill need to get started on cross compiling a kernel for my tf700t I download the source and get my config.gz and am running a ubuntu distribution but if you could post a link to a tutorial that has detailed instructions that will work for the infinity that would be greatly appreciated thankyou
alexcass4 said:
Can you post any links or names of everything ill need to get started on cross compiling a kernel for my tf700t I download the source and get my config.gz and am running a ubuntu distribution but if you could post a link to a tutorial that has detailed instructions that will work for the infinity that would be greatly appreciated thankyou
Click to expand...
Click to collapse
Step 1: Get a suitable ARM toolchain. I can't help you here with Ubuntu because I'm using Gentoo and their crossdev tool (http://www.gentoo.org/proj/en/base/embedded/handbook/?part=1).
Step 2: Cross-compiling the kernel works just as for native kernels (make menuconfig, make), but you have to pass parameters to each make, e.g. make ARCH="arm" CROSS_COMPILE="arm-gentoo-linux-gnueabi-" (or whatever your toolchain is called)
Step 3: For the TF700-specific blob stuff I have written a detailed tutorial here: http://forum.xda-developers.com/showpost.php?p=36925180&postcount=4
A bit of infos before starting this thread. I'm using a Samsung Galaxy S4 Canadian, I have a high end computer(maybe that helps for coding,stuff like that) and I have "medium" knowledge on rooting/flashing,etc. I am a great designer, well for myself, I think i'm good. So I can edit or create icons and themes for new rom!
I say medium, because the only thing I really know about this kind of stuff,is rooting,flashing,installing roms and pretty much that honestly.
I already downloading the Android SDK to test those custom roms i'd like to create. I thought of doing like a couple of guys on here, using the CM Source? and just adding stuff,etc.
--
What i'm looking to do, is creating a rom based of CM for the Galaxy S4 and just in general a little side project for myself and adding some infos in my head; Some may laugh because of the lack of knowledge, but hey! we all started somewhere
I'm asking the community of dev's or just users, do you have some threads or some stuff to download to "Start" this project ?
Some things I should read before, I won't test rom's on my phone as it's a daily phone, i'll use the emulator instead(AVD or SDK) and i'm already searching on how to run it.
If you have any useful youtube videos i'll gladly accept them
I found a tutorial on how to build a rom but for the Nexus 4, I guess it's the same process but different sources ?
I'll search for the sources of Cm for the Galaxy s4 but if anyone reads this thread and knows where to get it, please link me!
Thanks to the community, this may also be useful for other users. Thanks!
Okay, I will help
1st off, let me teach you some basics.
1.) You cannot test roms on the android sdk, the android sdk has nothing to do with roms, its for building apps and java programming. It will not help you with anything if an issue goes wrong in a rom, well only the adb (android debugging bridge) for taking locats.
2.) You cannot compile a rom on windows, only linux, preferably ubuntu. So you need to just download cm11 for your device and extract the rom zip.
I will tell you more later, but its like 1pm here Goodnight
Hi,
I‘m looking for a tablet as a development platform for gettting into custom android firmware development. What device (current or discontinued) is the most painless to compile a custom rom for with a current android regarding unlocking and driver support in 2021?
I‘m an electronics engineer and have worked on firmware for arm microcontrollers and did some kernel development for embedded linux (yocto) before.
I have the idea of creating an open source custom android for elderly people and small children that is pretty much locked down and has a simplified interface without cryptic messages. All settings, app installation and user support should be done from an app on another device. I think all the building blocks for this exists, I just want to put them together in one package. If you have suggestions for an existing base rom to build this on I‘d be happy to hear about it.
Cheers,
Rick