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[GUIDE] Custom ROM development for the rest of us [In Progress]

*** THIS IS NOT JUST ANOTHER EFFORT TO CREATE YET ANOTHER CUSTOM ROM***
Though Android is opensource, a lot of things are unknown regarding ROM development/modification. There are many custom ROMs available for Galaxy 3 (and also other phones) and lot of people are flashing them and making their phone more responsive, productive and faster; but very few people actually knew how to go about developing the ROM.
What I intend here is to find out and document correct way to build ROM for our favorite Galaxy 3, which is very popular in India.
The goal will be to develop the ROM from Android source + Drivers from stock ROM while documenting the process so that large number of people can contribute to the development.
I will shortly update the posts with what I have done.

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Can anyone help me convert system.img and userdata.img file into files flash-able by ODIN?
Thanks

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Reserved 5th post goes here...

looking forward to what you come up with
Making one aint difficult keeping it bug free might get sometimes

Thanks rudolf895
I have experience in Android SDK and NDK development, but I am a noob when it comes to ROM development. Thats why this effort.
I have fetched android source using repo as well as I have also downloaded source for I5801 from Samsung open source website. After this I will look into extracting drivers from stock ROM and successfully compiling it for Galaxy 3.
rudolf895 said:
looking forward to what you come up with
Making one aint difficult keeping it bug free might get sometimes
Click to expand...
Click to collapse

abhijeet.pathak said:
thanks rudolf895
i have experience in android sdk and ndk development, but i am a noob when it comes to rom development. Thats why this effort.
I have fetched android source using repo as well as i have also downloaded source for i5801 from samsung open source website. After this i will look into extracting drivers from stock rom and successfully compiling it for galaxy 3.
Click to expand...
Click to collapse
best of luck

Looking forward to it!

abhijeet.pathak said:
Thanks rudolf895
I have experience in Android SDK and NDK development, but I am a noob when it comes to ROM development. Thats why this effort.
I have fetched android source using repo as well as I have also downloaded source for I5801 from Samsung open source website. After this I will look into extracting drivers from stock ROM and successfully compiling it for Galaxy 3.
Click to expand...
Click to collapse
Do not fell shy to ask for help u need. Together we can make it better. We are with you whenever u need us.
ARMVK Dev Team

Thanks!
Thanks a lot for your support guys..
arunmcops said:
Do not fell shy to ask for help u need. Together we can make it better. We are with you whenever u need us.
ARMVK Dev Team
Click to expand...
Click to collapse

hehe, cant wait to see what you come up with, sounds promissing btw... i am also willing to help whereever i can, whereas this wont be too much in this case i guess.
good luck and thanx...

TY ..!
Thanx alot
This would be really helpful to alot of members here

interesting ! waiting ....

I applaud your thread, I myself was thinking about such a concept.
I wanna help, but I cant do that much (basic knowledge of C and basic/little knowledge of linux and adb).
I think first there should be a list of basic stuff. Like compiling the sources, extracting factoryrfs and co from your phone etc... Sometimes if you wanna start doing something and you dont know the basics you get scared off because of their apparent tremendous lack of knowledge.
I'd probably start dabbling if somebody told me how to compile the sources.

can you also specify your work environment, toolchain and such stuff, so anyone can start from zero? there is a kernel building vm image with all tools by sztupy somewhere on the forum that is eventually of interest, and there is also an extended version containing eclipse and some more tools for full android development:
http://forum.xda-developers.com/showthread.php?t=882010
hope this helps somebody...

Did you try using it? I think the scripts are specific and cant be used by us (without altercation)

no, i have absolutely no idea of kernel compilation and all that advanced stuff, but i guess it can be adapted for our use

Yup...me too in waitin line...Now i can say i dint made a mistake by buying it...
Sent from my GT-I5801 using XDA App

abhijeet.pathak said:
Can anyone help me convert system.img and userdata.img file into files flash-able by ODIN?
Thanks
Click to expand...
Click to collapse
maybe you can create a ".tar" package including all those files.. .tar is flashable in odin..

Source Code IceCreamSandwich Is Out

INTRESTING NEWS!!!:
Over at our Android Open-Source Project git servers,the source code
for Android version 4.0 (Ice Cream Sandwich) is now available.
Here's how to get it:Follow the instructions at
http://source.android.com/source/downloading.htmlCheck out the
'ics-release' branch:repo init -u
https://android.googlesource.com/platform/manifest -b android-4.0.1_r1
That's it! However since this is a large push, please be aware that it
will take some time to complete. If you sync before it's done, you'll
get an incomplete copy that you won't be able to use, so please wait
for us to give the all-clear before you sync.
This is actually the source code for version 4.0.1 of Android, which
is the specific version that will ship on the Galaxy Nexus, the first
Android 4.0 device. In the source tree, you will find a device build
target named "full_maguro" that you can use to build a system image
for Galaxy Nexus. Build configurations for other devices will come
later.
Unfortunately we still don't have our Gerrit code review servers back
online. That remains our top priority though, and we hope to have them
back soon.
This release includes the full history of the Android source code
tree, which naturally includes all the source code for the Honeycomb
releases. However, since Honeycomb was a little incomplete, we want
everyone to focus on Ice Cream Sandwich. So, we haven't created any
tags that correspond to the Honeycomb releases (even though the
changes are present in the history.)
JBQ, on behalf of the AOSP team.
--
Jean-Baptiste M. "JBQ" Queru
Software Engineer, Android Open-Source Project, Google.
Questions sent directly to me that have no reason for being private
will likely get ignored or forwarded to a public forum with no further
warning.

Hey dude, this is the development section. If you wanna post in here, you better have something to offer.
If you wanna post relevant news updates, shouldn't it go in the general section or something? Just sayin'

nrvnqsrxk said:
Hey dude, this is the development section. If you wanna post in here, you better have something to offer.
If you wanna post relevant news updates, shouldn't it go in the general section or something? Just sayin'
Click to expand...
Click to collapse
True, but is the code not something to develop a icecream rom?, if not then i will delete it, sorry if i put it in the wrong section

nrvnqsrxk said:
Hey dude, this is the development section. If you wanna post in here, you better have something to offer.
If you wanna post relevant news updates, shouldn't it go in the general section or something? Just sayin'
Click to expand...
Click to collapse
Sounds alot like a development related post when a source code is out

Developement means something you've developed, all developers know the source is out, that's why we don't need a thread in Dev, also this is like the 5th thread I've moved to general about the subject..

TheDeadCpu said:
Developement means something you've developed, all developers know the source is out, that's why we don't need a thread in Dev, also this is like the 5th thread I've moved to general about the subject..
Click to expand...
Click to collapse
Then move it or delete it if u want i dont care, just wanted to share thats all

korrel2008 said:
Then move it or delete it if u want i dont care, just wanted to share thats all
Click to expand...
Click to collapse
Nice attitude

It's nothing wrong, it's just that it's so big news it's hard to miss

No need to keep this thread open mates.
There is another one in the general section.
Thread closed
Cheers

[Q] Linking eclipse with source code and virtual device

This question is more directed towards developers, but anyone who knows feel free to contribute.
Recently i have downloaded the android source code on ubuntu and the SDK, got virtual device running and adb for my g2x. My question is now that i have the source code in my "WORKING_DIRECTORY" how can i link eclipse to the source code, and run my source in virtual device.
To sum up the question im looking for guide on creating own custom rom, it would be nice to be pointed in the right direction

Do u want to build the from from stock or CM sources
Sent from my LG-P999 using XDA App

Thanks for responding, i also have a nexus s, id assume its easier to work with nexus stock code then translate some of my work to the cyanogenmod for my
g2x, whatever is easier the get me going and understanding the concepts, So to answer the question working from stock

[Q] Source code for ROM(s) posted on XDA.

Hello,
I have been following this thread: http://forum.xda-developers.com/showthread.php?t=1991320&page=1 where icoolguy1995 has managed to create a ROM for the Allwinner A13 tablet.
Unfortunately, like many ROMs, the source code is not immediately available for further development. Basically I signed up to this forum because I planned to ask him for the source code, but as I cannot post in the developer's forum, I cannot.
I also notice that this is a reoccurring theme with new ROMs posted on XDA - the source code is often missing, and I was wondering what people's thoughts on this issue were?
_______
user135

You could just PM the creator, you don't need to post in a certain thread to do that. This is the course of action that would make the most sense, anyway.
Sent from my Transformer TF101 using xda app-developers app

Depending on the base ROM there may not be source available. Only the kernel source is available as most stock ROMs are closed sourced.
Wayne Tech S-III

ELI5 Kenel Source Code

hello, so i have been in communication with huawei regrading the kernel source. i mentioned the lack of source files for the mate 7 and how its part of the google/android agreement that oems must share all relevant sources for devices that use any part of android. they replied with the usual reply about how they will work hard to resolve this issue and whatnot. the rep did give me a link to the kernel source which i believe is for kitkat but i cant be sure so i hope that someone can verify.
having said that, why cant the kitkat source be used to build for lollipop and marshmallow? im still using a nook hd+ that is running MM......... WHAT??? how is this possible if the only kernel provided was for ICS? anyway, im going to keep poking at them until they either give up the LP/MM sources of they tell me to ****off. so, if anyone can please check out the link i would really appreciate it.
Lollipop Kernel?