Database Users

compiling your own roms

so... here's what i'm thinking.
how about setting up a vmware machine with all the source code for android on it, so that when a new version comes out, you can compile your own rather than waiting and then flash it to your phone. you could add your own modifications and any others that are out there.
this is a win / win situation as you get your own compilation, your own custom build and can screw about with the code it as much as you want as it's on a virtual machine.
you could update the android source code by pulling it online. and because it's a virtual machine, you don't need to worry about compilation issues across different machines.
i'm thinking about doing it - who'd be interested?

That's what I'm doing. It's FUN but to be honest it's quite a pain in the a$$ when you sync the master branch, compile, flash, and found out that the resulted ROM does not working properly and can't find any information about how to fix it.
BTW, I can hardly find the info on modifications -- most topics here are ready-to-flash ROM releases but no info on development. I did found some useful information in Nexus One forums, though.
Any suggestions on where can we find the resources regarding compilation and modification of AOSP?

well, my instincts tell me the modifications are "closed-source", hidden away from you. who knows what sorts of nasties are in the actual rom that's sitting on your phone. logging your every move, grabbing every site you visit, logging everything you type etc.
so, what's needed for a more successful dev community as far as i'm concerned is to allow the users to pick and choose what mods they want. this is an adp after all, and is one of the easiest phones to compile for.
so, if there's an active community compiling their own roms, then mods will perhaps become more open source with diffs / additions to the android source, which in itself will be better for users, developers and heck, who knows who might actually add it to the android source?
as for info for building:
http://source.android.com/source/building.html

[Q] Creating a custom ROM

Hello. I am interested in building my own ROM. I have some computer knowledge, but I want to know, what tools and files do I need for creating one. So maybe someone can guide me or point me to a tutorials. I basically just want to try some things.
Is there a way to brick my phone by using a custom ROM?
Also, what is android 2.3.5? Google's latest is Android 2.3.3 .

Android Latest stable release
Tablets: 3.2 (Honeycomb)
Phones: 2.3.5 (Gingerbread) / 25 July 2011; 38 days ago
Latest Android release is 2.3.5 for phones

good new, should be more like you.
Latest android for smartphones is 2.3.5.
Regarding advices to build a new rom, nothing better than to speak to those that already did and have the knowledge (stcokwell, DZO, FFranco, Knzo, etc)
Search the posts of each rom and speak with respective developers.
Good luck and I waiting for your rom to test it

I'm interested too, but it requires more knowledge about linux. Kernels and so on.
So i'm thinkin is better to build kernels, there is sources, there is websites with how to and so o.. rom is more complex.

I'm bringing this thread up now.
I am currently downloading CyanogenMod's source, because of what I've read android.git.kernel.org is down. My first idea was to do a proper scene port of the latest Android. But well, this has better documentation anyway. So, I haven't got the source yet to browse, but is there a way to make a general build and if I understand correctly, it creates me a system.img? How to make it flashable by recovery? And if it fails to start, can I still get to the recovery? And about kernel, this has to be modified too, right?
And for last, if anyone has a good Android source code browsing/modifying e-book/video/whatever, can I have it?
-e-
I found that CyanogenMod can automatically make a signed .zip and on normal Android AOSP I can make it with "make otapackage". Is that right?

Any good read?
u8800,cm7,[email protected]

PlanDreaM said:
Any good read?
u8800,cm7,[email protected]
Click to expand...
Click to collapse
Start from here
http://forum.xda-developers.com/forumdisplay.php?f=613
Good luck!

[samsung i857(doubletime)]ROM devlopers and users of this phone

HI all , i lunched this thread after weeks of googling and usless search for a new stock or custom rom to update my phone (samsung sgh-i857 doubletime) it's a dual screen phone with querty built-in keyboard it's from at&t and it is stuck on android 2.2.2, i'm very sad that they and after years from lunching it didn't back it up with a single soft update -_- ... and i know that there are users who bought this phone like me and seek help.. i know that it's not this easy but if you are a devloper help us by creating a custom rom for it ....if you are a user of this phone please support this thread by commenting so we can get an update for it :good: ps: i attached informations for it's cpu

Hello good sir, I like you am a noobish Doubletime user who is struggling to update it to Gingerbread. So far I have been somewhat able to use the Cyanogenmod source code and I have built a CWM Recovery for the device but that seems to have hard bricked it... I ordered a new one off ebay for $15 and I'm ready to start cooking. You have my support!

Just an update.
I have a plan I have on how to get this runnin.
1. Port CWM to the DoubleTime through Cyanogemod 6.
2. Get a working version of Cyanogenmod 6 working on the DoubleTime to hopefully free up some space.
3. Find if Gingerbread can run on Froyos kernel.
From there I'll either be building a GingerBread compatable kernel or Cyanogenmod 7 depending on compatability. Any advice or help would be very appreciated.

Being new to ROM building I'm a little lost and hesitant on flashing things but here's what I know so far.
The DoubleTime uses a Qualcomm MSM7230 same as the HTC Vision. I forked it's Github respiratory and I'll be using it as a base as recommended by the Cyanogenmod porting guide.
The partitions sizes (as a accurately as I can estimate them) are:
/cache=21.05MB
/data=176.65MB
/system=194.38MB
I may need to know the recovery partition size but I'm not sure how to find that out.
I have the recovery.img and the boot.img as well as the zImage. So as soon as the repo sync is done I'll be on my way.

I'm back again today with somewhat mixed news, I can find most of the partitions and their names (I've learned a lot today) but I can not seem to find the boot, recovery or ramdisk partitions. I'm already boggled by the what seems to be unconventional naming setup for partitions. Put all of my "notes" in a text docement in the attachments section. Any help with this is very appertiated. I can type and post anything into the ADB shell you need me too.
I'm beginning to feel like I'm talking to myself, I probably am...

Upon reading forum rules and such it has come to my attension that this is the wrong forum for this kind of thread, So I have made a new thread in the Miscellaneous Android Developement Forum that will hopefully be more useful at getting more proffesional and opinionated help.
http://forum.xda-developers.com/showthread.php?t=2651728

[REQ] Development Environment Setup for Moto G 2014

Hey there,
INTRO:
I'm a relatively new member to XDA and the Android Community as well. The Moto G (2014) is my first Android phone since ever. I was using iPhones (4,4S,5,5S), iPads and Mac and have Jailbroken and Developed Tweaks, Apps etc for iOS.
Now that I got my hands on this amazing device, I would love to contribute to the Community by developing and porting ROMs for the Moto G 2014.
WHAT? WHY?:
So if it isnt too much trouble could someone post a device-specific instructions, checklist and downloads to setup a development environment for Moto G (2014). I'm a pretty fast learner so any crude form of instructions would suffice. With the right heading and instructions I'm sure that I can contribute to this community.
PAST CONTRIBUTIONS:
If you're curious about what I've preciously done, just Google "Krishna Sagar iPhone" and you'll see. I've developed apps, Jailbreak tweaks and I've even been mentioned and credited by CNET.com for discovering the first solid evidence about 4G in the iPhone 5. (Before it was announced or released. Yea!! )
So any help at all is appreciated! You know.. Help Me to Help You!
Regards
Krishna Sagar
http://www.krishna.bz
PS: I've searched XDA and found some tutorials but I'm looking for some device specific instructions and downloads such as Device Tree, Kernal, ROM sources etc.. and crude up-to-date instructions on how to setup a Build-Environment. Thanks

Reserved by OP:
Once I get a working set of instruction and successfully setup my Dev Environment, I will post concise step-by-step instructions on how I set it up so that others can use it as a reference.

Okay....i just learned these things past month.
So tell me where you reached so that i can guide you.

N.K.V. said:
Okay....i just learned these things past month.
So tell me where you reached so that i can guide you.
Click to expand...
Click to collapse
I am at the very beginning... From the start would be great. Like i said.. I dont want a lengthy tutorial.. I'll find the instructions myself
For eg: just say setup Android Kitchen instead of walking me through the installation setup.
I just need a crude checklist to begin. I've doing some searxhing of my own.. But like i said, i need a bit more devicr specific approach!

Device specific approach would start once you have downloaded the repo.
Till then.... Approach for all the devices would be same.
Que: You are talking about building the rom from source right??
Or you just want to modify the stock rom!?

N.K.V. said:
Device specific approach would start once you have downloaded the repo.
Till then.... Approach for all the devices would be same.
Que: You are talking about building the rom from source right??
Or you just want to modify the stock rom!?
Click to expand...
Click to collapse
Havent decided really.. Might start by porting ROMs initially.. then gradually work on my own ROM
Thanks btw for your help

KrishnaSagar said:
Havent decided really.. Might start by porting ROMs initially.. then gradually work on my own ROM
Thanks btw for your help
Click to expand...
Click to collapse
And where can I download these device repos?

For Porting ROMs : Usually ports are done from working Cyanogen build or AOSP build, which we doesn't have yet. But, k2wl and shawn are main developers working towards that. Once we get those fully working then only you will be able to port another roms.
Regarding Device Repo: It's required to build rom from source, not for porting one.
repo is a "Source Code" file, which is approx 25-30 GB in size.

[Q] which AOSP 5.0 ROM for building yourself?

I am NOT a developer!
I am a Systems Administrator, and I have built a 4.2 before using ubuntu 14.04, with a SGS2 i9100.
I have attempted in the past to ask for a device tree so I could build my own pure AOSP, and no one was able to help me.
SO, I now have my hands on a S4, and I want to put 5.0 on it.
I can create the build environment. either the windows version or the ubuntu version.
What I would like to know is which ROM would provide me a bit of instructions on how to use and build their ROM.
I'm looking for a ROM as close to AOSP as possible.
Preferably without any CyanogenMod builds, but I hightly doubt that is possible.
Seems everyone is using them for some reason.
I've been going to the ROM's section and I see no instructions on how to BUILD the rom.
Sure, I see their Github, but no info in what environment its been build in.
Can someone assist in helping find a ROM, so I can contribute to this community once I get the feel for it?
thank you!

You can try building cm to understand the basis, then move to aosp