[GUIDE] How to Compile Your Own CM11/CM12/AOSP Kernel - Moto G General

Hi guys, long time no post. I have updated this guide on how to build kernels for Falcon so that anyone can learn! It's pretty simple once you get the hang of it. So yeah, here we go!
Prerequisites:
- You must have a Linux firmware running on your computer (I suggest Builduntu because you can skip the next one [build environment setup])
- Build environment setup (Put the this in terminal and follow instructions)
- Patience and a heart willing to learn
- You need to know the languages C, C++, Java, Ruby, Python... NOT! You don't need to know ANY coding languages.
[MOTIVATIONAL SPEECH]
Truth be told, when I first started out developing, I knew NO coding languages except for HTML and a little bit of Java. Both have nothing to do with kernels! I actually learned how to do this when I suffered from a concussion. So if you really want to learn how to kernel dev and you give up halfway, just know that a 14/15 year old kid could do it..
[/MOTIVATIONAL SPEECH]
Click to expand...
Click to collapse
WARNING: I am not responsible for any damages to your phone or computer or pet unicorn. When you modify the wrong partitions, set too many jobs for your compiler, break your keyboard out of frustration etc., that is not anyone's fault but yours. Or your pet unicorn.
Your Personal Handbook to the Following:
- Anything inside "CODE" boxes, type it into your terminal. If you can't find terminal, then press CTRL, ALT, t.
- If I were you, I would write these by hand instead of copying and pasting it because after a certain amount of times, you will remember the linux commands and it will be easier for you to compile more kernels for different devices
- Use this thread as a "Help Me" button. Ask for help!
Click to expand...
Click to collapse
A New Beginning:
Let's start out with something simple, getting the actual code:
Code:
git clone https://github.com/cyanogenmod/android_kernel_motorola_msm8226
This could range from 3 minutes to 2 hours!
Once that's done, open up your file manager and rename the folder (should be android_kernel_motorola_msm8226) to whatever you want. I will refer it as "mykernel".
Click to expand...
Click to collapse
Pokemon!
For this tutorial, we will be using a Sabermod 4.7 toolchain to compile. I WOULD teach you how to compile with 4.8+, but it creates errors that will take even longer for me to write about sooooooooo :fingers-crossed:. Now to get the toolchain:
Code:
git clone https://github.com/SaberMod/android_prebuilts_gcc_linux-x86_arm_sabermod-arm-eabi-4.7
Rename this to whatever you like, but I will be referring this as "toolchain"
Now go into you folder where the kernel source is stored...
Code:
cd mykernel
Click to expand...
Click to collapse
You're Almost There!:
Time to set-up the compiler!
Code:
export CROSS_COMPILE=/home/(insert linux home name here)/toolchain/bin/arm-eabi-
This tells the toolchain that "OK, we want to make ALL this code here into a kernel".
This next line tells it that your defconfig (the toolchain's manual for compiling the kernel) that it's in the arch/arm/configs folder.
Code:
export ARCH=arm
Now to tell the it what the defconfig is!
Code:
make falcon_defconfig
Hehe, now to the hardest part of all...
MuHAHHAHAHa
Click to expand...
Click to collapse
THE HARD (coding) PART
You ready for this? HERE IT IS! TIME TO BUILD THE KERNEL!
Code:
make -j4
Now sit back, relax, and watch the code! Or you could read a book, watch ****, count your fingers, play with your toes...
If you have an error during the waterfall of code, find the part where it actually says *error* (you'll probably have to scroll upwards) and search it on Google or post it here.
Click to expand...
Click to collapse
THE BEST PART
If you manage to get something that says "the kernel zImage is ready" or something like that, that means you've made it!
You have officially compiled your own kernel from source! Now you need to put it in a flashable zip.
Download this file and open it up, but DON'T EXTRACT IT.
Now go to your kernel source then "CTRL + F" and search for "zimage-dtb".
Find it and put it in the "kernel" folder of "FalconKernel - Signed.zip". Then "CTRL + F" and search ".ko".
Copy radio-iris-transport.ko and put it in the system/lib/modules (not pronto) of the zip.
Then find wlan.ko and rename it to pronto_wlan.ko. Copy and paste it in system/lib/modules/pronto of the zip.
Click to expand...
Click to collapse
Now you can put it on your phone and flash it! ​

I will update this in a bit. What feature would you guys want in your kernel? The most votes in the POLL above will be the one I teach you here!
Here I will walk you through on how to add the intelliplug feature made by @faux123
First, fetch my Green Machine kernel source (go into your kernel folder in terminal):
Code:
git fetch https://github.com/YoshiShaPow/green_machine_falcon
Then you could cherry-pick (basically copy) all my cherry picks for intelliplug from my source.
If you do check my source out, you can see there's a little link to a history of commits near the middle of the screen, right above the files/folders. You can see at this page of my features history, you'll see a bunch of commits for intelliplug. I will use those commits and copy it to your own kernel.
This copies the initial coding/first commit of intelliplug!
Code:
git cherry-pick 01a850f
This cherry-picks the remaining commits so that your newly added intelliplug is updated.
Code:
git cherry-pick 6623f2f^..4e1ece7
One more thing though, you need to add the line to compile intelliplug!
Almost all things compiled along with the zImage are in a file called defconfig. What a defconfig does, is tell your machine to build certain modules, kernel objects, drivers, governors, etc.etc.etc.. Now, all of them are found in the folder
arch/arm/configs
Click to expand...
Click to collapse
As stated in the OP, you have to modify the defconfig you use. (CM11 Kernel is falcon_defconfig, Gummy Kernel is msm8226_mmi_defconfig). Open up the corresponding defconfig and add this to ANY line anywhere.
Code:
CONFIG_INTELLI_PLUG=m
Now, for those who are familiar with "y=yes/n=no/m=maybe", you'll see that I specifically told you to put the "m=maybe" one. That's because when you compile the kernel again, right after you're about to start your build. Since you put that "m", the terminal will prompt you with a "y=yes/n=no" question on whether or not you would like to add the following feature. Since you would like to add the feature, put in "y". Later on when you feel more comfortable with adding features to your kernel, you can go back into the defconfig and put it as
Code:
CONFIG_INTELLI_PLUG=y
So that it will compile it without asking, since you have given it an answer.
Now you have officially compiled a "Custom Kernel" and with the knowledge you know, you could create a feature packed one by just kanging (copying one's work/features).
Always remember to
Code:
make clean && make mrproper
after every build to prevent errors and such!
Click to expand...
Click to collapse

I will use this to teach you how to make your own Bash Building scripts (and save time) to make it easier for your development life to flourish... eventually....

Any guide on adding governors or hotplug driver??
Sent from my Moto G using XDA Free mobile app

Best guide but how to add features likes s2w,dt2w etc

Flashhhh said:
Any guide on adding governors or hotplug driver??
Sent from my Moto G using XDA Free mobile app
Click to expand...
Click to collapse
Vote in the poll above! I will make a guide for one or more of the top chosen picks!
Brawn_Sg said:
Best guide but how to add features likes s2w,dt2w etc
Click to expand...
Click to collapse
DT2W and S2W are more complex. They require a few other things (ex. Powersuspend). I'll wait a bit and see what feedback I get before moving forward to something a bit more complex like DT2W, or GPU Overclock.

Can i use make menuconfig?

Krizthian said:
Can i use make menuconfig?
Click to expand...
Click to collapse
Yes you can. Normally when using "make menuconfig", you use the command after making the kernel's defconfig (falcon_defconfig).

Build using Docker
If you're on Linux, take a look at this approach which uses Docker for building CyanogenMod 12.0:
http://forum.xda-developers.com/showthread.php?t=2650345
(Disclaimer: It's written by me)

YoshiShaPow said:
Hi guys, long time no post. I have updated this guide on how to build kernels for Falcon so that anyone can learn! It's pretty simple once you get the hang of it. So yeah, here we go!
WARNING: I am not responsible for any damages to your phone or computer or pet unicorn. When you modify the wrong partitions, set too many jobs for your compiler, break your keyboard out of frustration etc., that is not anyone's fault but yours. Or your pet unicorn.
Now you can put it on your phone and flash it! ​
Click to expand...
Click to collapse
when i was trying to flash cm12 rom in cwm recovery it says error in zip and getting status 1 error , installation aborted ,
pls help im using moto g gpe and when trying to flash from twrp it says error executing updater binary in zip ,
no idea what to do pls help me out

karthik432 said:
when i was trying to flash cm12 rom in cwm recovery it says error in zip and getting status 1 error , installation aborted ,
pls help im using moto g gpe and when trying to flash from twrp it says error executing updater binary in zip ,
no idea what to do pls help me out
Click to expand...
Click to collapse
When you downloaded the anykernel zip, you aren't supposed to extract it. The best way to put the kernel in the zip is to just drag and drop it while IN LINUX. It will not work for windows! Or you could try signing the zip in TWRP (I think there's an option for that somewhere).

YoshiShaPow said:
When you downloaded the anykernel zip, you aren't supposed to extract it. The best way to put the kernel in the zip is to just drag and drop it while IN LINUX. It will not work for windows! Or you could try signing the zip in TWRP (I think there's an option for that somewhere).
Click to expand...
Click to collapse
im not extracting anything , i just downloaded the official cm12 nightly and flashed but didn't workout ,any ideas

karthik432 said:
im not extracting anything , i just downloaded the official cm12 nightly and flashed but didn't workout ,any ideas
Click to expand...
Click to collapse
That has nothing to do with this thread :silly:. You probably have to sign the zip again.

@YoshiShaPow.... i need some help
i compile a kernel for my device and it booted fine but no display....
can you help me in this....
sorry for posting here..my device is Redmi 1s

Luffy.d said:
@YoshiShaPow.... i need some help
i compile a kernel for my device and it booted fine but no display....
can you help me in this....
sorry for posting here..my device is Redmi 1s
Click to expand...
Click to collapse
No problem, I welcome anyone with kernel development questions here! When booted, what do you mean? And if there's no display, how do you know it booted? Also, did you use my anykernel zip? I may be wrong but I don't think it is compatible with all phones.

YoshiShaPow said:
No problem, I welcome anyone with kernel development questions here! When booted, what do you mean? And if there's no display, how do you know it booted? Also, did you use my anykernel zip? I may be wrong but I don't think it is compatible with all phones.
Click to expand...
Click to collapse
yeah it booted bro....i can hear lock unlock sound and even i can hear incoming call ring
i was trying to fix this from a week and found out it not kernel it rom problem ...
my device is build using prebuilt kernel so any compile kernel wont work...but now they are build with this kernel source so compile kernel work
thanks bro...
and one thing bro... i m new to kernel development so how can i optimize kernel
i know about and can add governors and use custom toolchain but i don't know about o2 or o3 optimization etc and all
sorry if i m being too much

great I start today

Luffy.d said:
yeah it booted bro....i can hear lock unlock sound and even i can hear incoming call ring
i was trying to fix this from a week and found out it not kernel it rom problem ...
my device is build using prebuilt kernel so any compile kernel wont work...but now they are build with this kernel source so compile kernel work
thanks bro...
and one thing bro... i m new to kernel development so how can i optimize kernel
i know about and can add governors and use custom toolchain but i don't know about o2 or o3 optimization etc and all
sorry if i m being too much
Click to expand...
Click to collapse
Those changes are a bit more advanced because it will bring build errors. The kernel is already preoptimized with o2 changes. The errors are fixable though. I don't think I'll be able to add an explanation for those in this thread, maybe through pm?

YoshiShaPow said:
Those changes are a bit more advanced because it will bring build errors. The kernel is already preoptimized with o2 changes. The errors are fixable though. I don't think I'll be able to add an explanation for those in this thread, maybe through pm?
Click to expand...
Click to collapse
thanks bro...will pm you when i finish setuping my git

etvtaglios said:
great I start today
Click to expand...
Click to collapse
Go for it bro!!

Related

[DEV TOOL] EasyDev-v9 - "Roll Your Own" [8-28-11]

This is a continuation of the "Compiling CM6 for Eris" thread - http://forum.xda-developers.com/showthread.php?t=856215. But since Team ADX has really come together on this, we are releasing it in it's new form.
Thanks to workshed for working to get the Eris on the Official CM list and merged into the main repo. And also, thanks to workshed for most of the v6 --> v7 changes to EasyDev!
This script will grab CM7 source and compile a CM7 ROM for you using the official vendor tree that is built-in to the CM source. You have the option of including Google Apps or not.
Uses:
CM source - https://github.com/CyanogenMod/android.git
Conap's CFS kernel that's built-in to CM source - https://github.com/Conap30/htc_kernel_desirec_cfs
Requirements
-------------
1) 64- bit Linux -tested on Debian, Ubuntu 10.04, Linux Mint (if you have a different flavor of linux and easydev worked for you, please let us know so we can update this list)
2) An existing Eris ROM that the script will pull the proprietary files from.
INSTRUCTIONS
1) Download the script
2) 'chmod a+x easydev-v9.sh'
3) copy it to the directory of your choice or leave it where it is
4) copy an existing ROM to the same directory (tested with GSB, but most should work)
5) run it ('sudo ./easydev-v9.sh')
Possilbe future features:
Done.
Changelog
v1 - initial release
v2 - added squisher, made 'make clean' optional, added installation of dependencies, cleaned up output
v3 - uses existing ROM to pull proprietary files, renamed to 'easydev' for case sensitive linux admins
v4 - fixed file missing from list in unzip-files.sh in vendor tree, fixed move/rename of existing ROM, change 'make clean' option to default to no instead of yes
v5 - added 'apt-get update' to refresh repo list (should install dependencies now), swapped order of extract-files and unzip-files to fix 'chmod akmd' issue, tried not to break anything else
v6 - moved questions to beginning of script, added check to only init repo the first time, added check for existing ROM, modded vendor tree to fix compile issues
v7 - removed CM6 stuff, removed kernel compilation code, removed vendor tree code, changed from CM6 to CM7, fixed path bug, added 32-bit libs to dep list
v8 - added ALL official CM devices (mostly untested), minor update to dependency installer code (4-21-11)
v9 - added an extra check for correct Java version, fixed .zip rename issue
Download links:
v7+ --> https://github.com/gnarlyc/EasyDev-Eris
NOTE: If you have issues with google setup or not being able to pass andy the android at the beginning of setup, please delete Provisions.apk for system/app you shouldn't have a problem, but just incase, this will remedy it. -workshed
I'm all over this sh*t
Oh damn, I'm excited for this. good thing I use ubuntu!
Sent from my ERIS using XDA App
this should be fun once i get my new laptop.
Nice! I will be trying this later.
This is awesome! Thanks alot. What does the 'make clean' option do?
Skrip037 said:
This is awesome! Thanks alot. What does the 'make clean' option do?
Click to expand...
Click to collapse
The make clean removes everything that has been compile so far leaving only the original source.
Skrip037 said:
This is awesome! Thanks alot. What does the 'make clean' option do?
Click to expand...
Click to collapse
It removes any previously built ROMs, etc. It's not needed every time, so I've made it optional in the next version. The problem was that sometimes the script would be broken in some way and wouldn't build a ROM. But, there's so much text displayed to the screen, it's not always easy to notice. So, I was actually flashing the same test ROM over and over instead of getting a new build...
Great work guys. Going to try it out on Arch Linux and if anyone's interested I'll give details about how to get it working there (or just modify the script to detect Arch as opposed to Ubuntu and work accordingly.
<gripe>One complaint: commands (including scripts) should *always* start with a lowercase letter </gripe>
good work gnarlyc & conap.
this sounds great and i will be trying this when i get home. I have just one question. Why would i want to run this instead of conap's rom? Both being pure CM. I see alot of the other cm6 roms have stuff themed, but conap's rom doesn't. I'm assuming this is complete pure cm without little tweaks done by devs of the respective roms. Thanks in advance.
ngc604 said:
this sounds great and i will be trying this when i get home. I have just one question. Why would i want to run this instead of conap's rom? Both being pure CM. I see alot of the other cm6 roms have stuff themed, but conap's rom doesn't. I'm assuming this is complete pure cm without little tweaks done by devs of the respective roms. Thanks in advance.
Click to expand...
Click to collapse
Some people just like to "roll their own", more or less. If you like having someone else make improvements and fix issues for you, then you'll probably want to stick with another ROM.
I would love to make my own fixes and tweaks but i dont have the knowledge nor the time to gain said knowledge. guess i will just stick with the devs roms. thanks
Very very exciting. I am installing Ubunto 10.4 now. So does EasyDev-v2 pull from the CM6 nightlies or the stable version and can we change where it pulls from for the CM6 source. This is great.
Will have to check this out later. Always wanted to understand the compile process, always to busy with other software projects. Thanks for building this resource for the rest of us.
morrisdan said:
Very very exciting. I am installing Ubunto 10.4 now. So does EasyDev-v2 pull from the CM6 nightlies or the stable version and can we change where it pulls from for the CM6 source. This is great.
Click to expand...
Click to collapse
Hmmm. Someone correct me if I'm wrong, but I'm pretty sure that this is currently grabbing 'stable'.
Code:
repo init -u git://github.com/CyanogenMod/android.git -b froyo
I'm thinking that to get the nightly, we'll have to change that to:
Code:
repo init -u git://github.com/CyanogenMod/android.git -b master
I'll try it as soon as I can. You got me to thinking that we could add that as an option, if I understand this correctly.
Nightly vs Stable
Yes, you answered my question regarding nightly and stable. I am having fun so far. I got all the necessary packages installed. That was pretty easy using the Ubunto package manager deal. So where do I find the proprietary.zip now? I am almost there to cook this sucker up.
morrisdan said:
Yes, you answered my question regarding nightly and stable. I am having fun so far. I got all the necessary packages installed. That was pretty easy using the Ubunto package manager deal. So where do I find the proprietary.zip now? I am almost there to cook this sucker up.
Click to expand...
Click to collapse
I was apparently wrong about the "-b master" switch, but I think I mostly got it right...
Right now, you'll have to grab the files listed in the OP and zip them up into a file called 'proprietary.zip'. Then place it in the same directory that you run the script from.
I'm working on a way that you can just place an existing ROM there, and it will extract the proprietary files for you. That should be in v3.
Proprietary.zip Files
Can I download CELB Froyo 3.8 and uncompress it and do searches for those files and pull them out and zip them up?
morrisdan said:
Can I download CELB Froyo 3.8 and uncompress it and do searches for those files and pull them out and zip them up?
Click to expand...
Click to collapse
Yes, that should work fine. Here's a list with the paths -
https://github.com/Conap30/android_device_htc_desirec/blob/master/extract-files.sh

Kernel Source DROID Incredible by HTC (Verizon) – GB MR - 2.6.35 WITH COMPILING GUIDE

Hey all, I guess if your here its because you want to build your own kernel from the HTC GB Kernel source for the HTC Droid Incredible. So that's what we're gonna do.
First things first. I have to send out a huge thanks to a few guys that helped me out along the way.
jdkoreclipse - Your the best man. Thanks for getting me compiling.
wdfowty - Always good on the code.
ohheyitslou - Standing by while a blabbered on with stupid questions.
conap - The original god of kernels.
Koush - Thanks for the anykernel updater.
Note: The method I descripe below is what worked for me to get this thing to build and boot. Additional packages may be required. Ie; JDK, Android SDK, Python, git and the 32bit libs (if your on a x64 machine). I do assume that you have them and have your computer set up for development. I also assume that you are fully aware that any damage caused to your devices from YOU following this guide is held at your own responsibility.
Click to expand...
Click to collapse
First things first, lets make sure you are on a linux distro. At the time of this writing, I was using Ubuntu 11.10 x64. Note: 64x is highly suggested. My computer is a dual core amd machine with 4GB of ram. I have a 250GB HHD.
Next lets download some things that we will need for your kernel.
The kernel source of course:
DROID Incredible by HTC (Verizon) – GB MR - 2.6.35 kernel source code
This is the correct size and MD5:
88.8 MB (93,175,808 bytes) 67c01623ff73415a99e5f8cd1d8ef11a
You will also want the CM Toolchain. This is what compiles your kernel.
Open a terminal window and type:
Code:
git clone git://github.com/CyanogenMod/android_prebuilt.git prebuilt
And finally, the anykernel_updater.zip for packaging and flashing your kernel: anykernel_updater.zip
Have these things downloaded? Great! Lets continue.
Next we need to create a new build directory to build your kernel in. For this tut, we will make this in your Home dir.
Open a terminal window and type:
Code:
cd ~
mkdir android
cd android
mkdir kernel
Easy huh?
Next grab your HTC Droid Incredible kernel source archive and just open it with archive manager. We don't need to do any untarring here.
You'll want to drag that 395.2MB folder inside called 'incrediblec-2.6.35-gb-mr' to that kernel directory you created.
Next, grab the CM toolchain archive and open it the same way. Yup just drag that folder thats inside there out and put right in your 'android' folder.
So lets review real quick before we continue:
Inside your Home directory you now have a folder called: android
Inside that android folder you have two folders. One called: kernel and the other called: android_prebuilt or prebuilt.
Inside the kernel folder you have your kernel source folder: incrediblec-2.6.35-gb-mr
Is this correct? Good.
Now, lets open a new terminal window and move to your kernel source folder:
Code:
cd '/home/yourusername/android/kernel/incrediblec-2.6.35-gb-mr'
Now we will compile the source. Note: This is a basic kernel source compiling guide. Our focus is to simply compile the source. Nothing more.
In the terminal window type:
Code:
make incrediblec_defconfig
make -j4 ARCH=arm CROSS_COMPILE=/home/yourusername/android_prebuilt/linux-x86/toolchain/arm-eabi-4.4.3/bin/arm-eabi-
Note I used j4. This is because I am using a dual core box to develop on. I think now days most boxes are usually dual core or quad core?
Your kernel should now be compiling. This process could run average between 5min-1hr. My laptop (which is beast) did it in about 2 minutes. But then again I'm running a full install of 'buntu x64 with everything updated and ready to rock.
Anyways after the compiler finishes building it will tell you where to locate your kernel and wifi driver. Yes the wifi driver is included!
The kernel should be at: /home/yourusername/android/kernel/incrediblec-2.6.35-gb-mr/arch/arm/boot/ for those that don't know it is called 'zimage'. Just drag that out to your Desktop.
Now go grab your wifi driver. Its located at: /home/yourusername/android/kernel/incrediblec-2.6.35-gb-mr/drivers/net/wireless/bcm4329_204/ It will be called bcm4329.ko. Again drag that out to your desktop.
Now you can close everything thats open. Grab that anykernel_flasher.zip you downloaded earlier and open it up with archive manager. Don't extract it, just open it.
Navigate to system/lib/module/ and drag your bcm4329.ko right into it.
Next back up all the way to the root of the anykernel_flasher.zip and then open the kernel folder. Yup just drag and drop your zimage right in there. Close the archive manager window.
CONGRATS!!! You just compiled your first kernel from source!
Now you can rename the zip to whatever is easiest for you to remember. Common practice says the date and time should be in the name. Like mine from today is called: 2.6.35.13-stang-kernel-1830-110111.zip.
Now go test your kernel. Just put it on your sd card and flash it through recovery. The anykernel_updater.zip will handle the wiping for you so you shouldn't have to worry about wiping boot, dalvik-cache or cache. You can still wipe those things if you would like.
Once the flash is complete, just hit reboot device and wait for your phone to boot up. It took mine about 5 minutes to fully boot up.
Well, I hope yall enjoyed this guide. I wanted to keep it simple. I am not a kernel god or anything but let me tell ya, I went through a lot to try to learn how to do this. So if you run into any trouble, I'll try to help you out if I can.
Have fun guys!
now what​..........
Nice. Good job.
Sent from my ADR6300 using Tapatalk
Way to help us out with a good easy to follow guide stang thanks
sent from my sexy Slcd Droid Incredible. not dinc or D-inc that just sounds stupid.
tiny4579 said:
Nice. Good job.
Sent from my ADR6300 using Tapatalk
Click to expand...
Click to collapse
Thanks Tiny. Now we need to get some more customs going
evilstewie23 said:
Way to help us out with a good easy to follow guide stang thanks
sent from my sexy Slcd Droid Incredible. not dinc or D-inc that just sounds stupid.
Click to expand...
Click to collapse
Thanks stew, You know how much this means to me.
Beast Mode! Very nice guide sir, I'm sure some of the more serious members will get hella use out of this. I have been (sort of) following your progress on twitter, so glad to see that you finally got it figured out. Nice work.
00McD00 said:
Beast Mode! Very nice guide sir, I'm sure some of the more serious members will get hella use out of this. I have been (sort of) following your progress on twitter, so glad to see that you finally got it figured out. Nice work.
Click to expand...
Click to collapse
Thanks Mc. I'm just happy to have learned this much atleast. I'm even more happy to share what I've learned. That's the important part.
wildstang83 said:
Thanks Mc. I'm just happy to have learned this much atleast. I'm even more happy to share what I've learned. That's the important part.
Click to expand...
Click to collapse
Definitely, I have always felt the same way. Sharing is caring lol
That's the stuff, Wildstang. Glad you're back.
Sent from my Prime_XL Incredible via Tapatalk
very nice. Im going to give a this a go and see what i can some up with. does this require a sense rom or a aosp rom?
dirtsky said:
very nice. Im going to give a this a go and see what i can some up with. does this require a sense rom or a aosp rom?
Click to expand...
Click to collapse
This compiles a sense kernel.
tcberg2010 said:
This compiles a sense kernel.
Click to expand...
Click to collapse
Well Sh*t. Oh well ill still give it a go I guess.
tcberg2010 said:
This compiles a sense kernel.
Click to expand...
Click to collapse
these instructions will work fine for aosp. You just have to download that kernel source instead. The compile process is the same.
Sent from my ADR6300 using Tapatalk
Ill have to get the kernel source and see what I can do.
Sent from my Incredibly awesome Droid Incredible.
Thanks for adding this howto, wildstang -
I really appreciate it. I just for the first time in a year+ went from my old rooted inc to this home-brewed self-compiled (I added cifs & tun built into the kernel) and installed it. I'd just tried the insensitive ROM as well and this helped things quite a lot due to cifs & tun. I also set the clock to a not-very-aggressive 1075000 which works fine on my inc.
Much appreciated and good guide.
edit: I forgot to mention that in general and here as well, you can 'brand' your kernel so you're sure you've really installed it and it is running on your phone by checking the firmware revs in about-phone. To do that, just edit Makefile and I think it is called Extra (under Version) which is as it is set to .13, so I set that in my case to .13-cifs-tun-cust, and it shows on my phone. It is useful in case you forget to zip the file up or something.
Hashi

[Q] [Need Help] How to edit and compile a kernel

Hello
Is there a tutorial on how to compile a kernel ?...
I would like to do some tests of kernel-editing for my extended battery.
For example, if I just want to start from tytungr14 kernel, edit one or two files and compile it.
Thanks for your help.
denseye said:
Hello
Is there a tutorial on how to compile a kernel ?...
I would like to do some tests of kernel-editing for my extended battery.
For example, if I just want to start from tytungr14 kernel, edit one or two files and compile it.
Thanks for your help.
Click to expand...
Click to collapse
Have a look here. Good luck.
shanman-2 said:
Have a look here. Good luck.
Click to expand...
Click to collapse
That is only a tutorial on how to unpack boot.img, not kernel. The boot.img *contains* the kernel and ramdisk, but you cannot directly edit the kernel. Some people have edited the kernel with a hex editor, but that is very hacky and not everything can be edited that way.
To download tytung's kernel source, make a directory, and download the kernel source there.
Code:
git clone >insert link to git repo here<
and if tytung makes any updates/changes to his repo, you can use
Code:
git pull
while cd'd to the directory the kernel is in
I learned how to compile my first kernel by cross referencing these two guides:
http://wiki.cyanogenmod.com/wiki/Building_Kernel_from_source and
http://forums.androidcentral.com/ht...how-build-your-own-kernel-package-source.html
Of course, this is not a complete guide, and I assume you have downloaded the andorid source and all the tools before.
OOPS! :cyclops:
Sorry wrong link, thanks for correcting.
This is the one I meant to post, it seems like a good beginner tut, even though I haven't delved in there myself yet ( have had a read through.)
http://forum.xda-developers.com/showthread.php?t=1748297

[Script] Build ICS/JB Kernel

Thanks to the amazing work of mapkel you can now use this script to compile and pack the kernel!
UPDATE: read mapkel's post here: http://forum.xda-developers.com/showpost.php?p=43419784&postcount=45
Thank him here.
This is an informative guide and I decline responsibility for any damage to your device.
Do not attempt to build this kernel if you are going to complain to devs about issues.
That being said, mapkel has made this so that even those with little knowledge can build the kernel without any issues. If you do have any issues, post here and I will try to assist you.
The following is a complete tutorial to building the kernel.
Credits:
Kernel Devs: krystianp, lehjr, Epinter, and mmontuori for making this kernel; without them there is no kernel.
Big thanks to mapkel for this amazing script.
Another big thanks to benouch for the original idea.
A final big thanks to zen25205 for help with building the kernel and getting the Linaro Toolchain.
Kernel Kitchen
I suggest building this with the latest CM9 MROM until the public beta is released.
You need to install Ubuntu 12.04 64bit (Google for instructions)
Prerequisites:
Open a terminal and run the following commands the first time:
Code:
sudo apt-get install -y build-essential kernel-package libncurses5-dev bzip2
Code:
sudo apt-get install git
If there are any issues with this guide, or if you have any issues building the kernel, post here and I will assist you as best I can.
Stage 1 (start at stage 2 if you have already built the kernel using this script:
Code:
cd ~
Code:
wget https://www.cubby.com/pl/kernel_script.zip/_25f010125b924ec7a42fe1d66245f36a
Code:
unzip ${HOME}/kernel_script.zip -d ${HOME}
Stage 2:
Code:
cd kernel
Code:
./script
There will be 4 choices to make throughout the script:
Clean install y/n (choose "n" on first run of script)
What defconfig? (Usually it is MROM but in the last update it is temporarily MROM2)
Compile CM9 or CM10 kernel? (self explanatory)
Name of config (Any name works. I chose "olympus".)
enjoy)
Built but cam not working
paladin881 said:
Built but cam not working
Click to expand...
Click to collapse
cameras disabled due to battery drain
Click to expand...
Click to collapse
https://github.com/CyanogenMod-Atrix/android_kernel_motorola_olympus/commits/master
Post here if it worked well for you. Give some feedback for mapkel.
No Wifi
Cheers, the script works great on Ubuntu 11.10, without a hic.
However, upon flashing the kernel, I get no wifi. I'm going to try your step by step tutorial...
Edit: I built the kernel using MROM2 defconfig and for CM10, and flashed "someone's" CM10
Newbleeto said:
Cheers, the script works great on Ubuntu 11.10, without a hic.
However, upon flashing the kernel, I get no wifi. I'm going to try your step by step tutorial...
Edit: I built the kernel using MROM2 defconfig and for CM10, and flashed "someone's" CM10
Click to expand...
Click to collapse
Strange..
The modules should copy with this.
Try CM9
atrix4g18 said:
Strange..
The modules should copy with this.
Try CM9
Click to expand...
Click to collapse
I'm updating Ubuntu, maybe the problem is on my end. Will try CM9 in the meanwhile and let you know!
Newbleeto said:
I'm updating Ubuntu, maybe the problem is on my end. Will try CM9 in the meanwhile and let you know!
Click to expand...
Click to collapse
You won't be able to do both.
If you compiled the kernel for CM10 you will only be able to use it on CM10.
Unless you are able to update Ubuntu as you compile the kernel for CM9.
atrix4g18 said:
You won't be able to do both.
If you compiled the kernel for CM10 you will only be able to use it on CM10.
Unless you are able to update Ubuntu as you compile the kernel for CM9.
Click to expand...
Click to collapse
It's impossible to compile while updating, didn't remember that, silly me :silly:
Anyhoot, wifi still doesn't work in Ubuntu 12.04. Fresh install on a different PC, way faster than updating
I'll try CM9 tomorrow, should've been asleep for a while
Can anyone or everyone list sites that work with a direct link.
That means I go to www.sitename/filename.zip and it starts downloading.
All I can think of right now is a cloud storage like Dropbox or Google Drive. I know Dropbox has a traffic limit for public files. Don't know about Google drive
Sent from my MB860 using xda app-developers app
upndwn4par has unlimited bandwidth, iirc. Maybe you can contact him and ask if you can host that one tiny script file there?
Or you could sign up with a free webhost and upload it there. There are several free webhosts with unlimited bandwidth (with a very limited space as trade-off, but I think it's more than enough for the script file).
If it's just a single script, maybe something like pastebin.com or similar might be an option? A little inconvenient since you have to copy and paste content instead of just download, but AFAIK it does have unlimited bandwidth.
atrix4g18 said:
Can anyone or everyone list sites that work with a direct link.
Click to expand...
Click to collapse
Maybe copy.com? Here is my ref for extra 5 GB: https://copy.com?r=qfhUoV
If this does not solve the problem, I can provide space for the script on my own server with a separate FTP account.
priard said:
Maybe copy.com? Here is my ref for extra 5 GB: https://copy.com?r=qfhUoV
If this does not solve the problem, I can provide space for the script on my own server with a separate FTP account.
Click to expand...
Click to collapse
Doesn't have a direct download link.
quetzalcoatl2435 said:
Doesn't have a direct download link.
Click to expand...
Click to collapse
Not quite. You can still download a file, for example using wget.
If You have a short public link, for instance: copy.com/PJzYgAUKECQm, You need to open it and copy the full link. In this case: copy.com/s/PJzYgAUKECQm/BetterBatteryStats_xdaedition_1.13.4.0.apk
then:
wget copy.com/s/PJzYgAUKECQm/BetterBatteryStats_xdaedition_1.13.4.0.apk
and done.
I will look at all the suggestions later today.
Thank you.
Delete

Porting ROMs

How does one port ROMs to another phone? I'm looking to try and port Xylon to the Find 5.
Sent from my X909 using xda app-developers app
it's really not that difficult. just have to adjust some overlays, change some stuff in vendor and maybe grab the camera from CM if the changes haven't been made to that ROM.
if you are building from source:
Find the 4.2.2 source code of the ROM you want to port
Get the manifest.
Add the CM10.1 device/kernel tree and proprietary libs in the .repo/local_manifest/roomservice.xml
sync all the repos
(do whatever the source might need you to set up: EG paranoid android, need you to setup your device properly in vendor/pa/* files)
compile. Fix any problems(maybe missing files, etc)
you could try a non-4.2.2-based ROM to port, but you'll run into more incompatibility issues to fix
mbh87 said:
it's really not that difficult. just have to adjust some overlays, change some stuff in vendor and maybe grab the camera from CM if the changes haven't been made to that ROM.
Click to expand...
Click to collapse
So would you say just use this
http://forum.xda-developers.com/showthread.php?t=2232773
And the CM10 for our Oppo?
Sent from my X909 using xda app-developers app
newbcake said:
So would you say just use this
http://forum.xda-developers.com/showthread.php?t=2232773
And the CM10 for our Oppo?
Sent from my X909 using xda app-developers app
Click to expand...
Click to collapse
No, build from source since it's available.
mbh87 said:
No, build from source since it's available.
Click to expand...
Click to collapse
You mean Oppo's source or AOSP from Google? I presume AOSP
Sent from my X909 using xda app-developers app
assuming this is the one you want to port (it is using 4.2.2, so hopefully it'll be easier)
read their README: https://github.com/XYAOSP/buildscripts
use repo and checkout this manifest
https://github.com/XYAOSP/platform_manifest/blob/jb4.2/default.xml
use repo and sync all the repos
then see how I get the device specific files here? do the same https://git.ngvincent.com/projects/oppo-x909-cm10/wiki/Build#Get-device-specific-sources-and-build
then follow whatever instructions needed to build. if it uses CM based building (which i think they do here, then do
. build/envsetup.sh && brunch
select the find5 entry (if it;s not there, then do lunch, select find5, mka)
wait for it to fail. read error message. fix error message. repeat last 3 steps .. Google is your friend... learn to love google
---------------------------------------
you should try building CM10.1 first. there will hopefully be no errors, and you learn how to use brunch/lunch/breakfast / etc
https://git.ngvincent.com/projects/oppo-x909-cm10/wiki/Build
paperWastage said:
assuming this is the one you want to port (it is using 4.2.2, so hopefully it'll be easier)
read their README: https://github.com/XYAOSP/buildscripts
use repo and checkout this manifest
https://github.com/XYAOSP/platform_manifest/blob/jb4.2/default.xml
use repo and sync all the repos
then see how I get the device specific files here? do the same https://git.ngvincent.com/projects/oppo-x909-cm10/wiki/Build#Get-device-specific-sources-and-build
then follow whatever instructions needed to build. if it uses CM based building (which i think they do here, then do
. build/envsetup.sh && brunch
select the find5 entry (if it;s not there, then do lunch, select find5, mka)
wait for it to fail. read error message. fix error message. repeat last 3 steps .. Google is your friend... learn to love google
---------------------------------------
you should try building CM10.1 first. there will hopefully be no errors, and you learn how to use brunch/lunch/breakfast / etc
https://git.ngvincent.com/projects/oppo-x909-cm10/wiki/Build
Click to expand...
Click to collapse
Is there something wrong with the Xylon repo? I keep getting this:
Code:
Cannot fetch htc-msm8960/[some path here]
newbcake said:
Is there something wrong with the Xylon repo? I keep getting this:
Code:
Cannot fetch htc-msm8960/[some path here]
Click to expand...
Click to collapse
use google and your own intuition to help you (this is why you should build the Cm10.1 ROM first.... the knowledge you gain will help you)
most likely either github is down, or the path referencing it is invalid, or something......
but the question is, do we need htc-msm8960? most likely no, since the oppo kernel is self contained
^^^ all this comes from experience.... seriously, go build cm10.1 for the find 5 first
paperWastage said:
use google and your own intuition to help you (this is why you should build the Cm10.1 ROM first.... the knowledge you gain will help you)
most likely either github is down, or the path referencing it is invalid, or something......
but the question is, do we need htc-msm8960? most likely no, since the oppo kernel is self contained
^^^ all this comes from experience.... seriously, go build cm10.1 for the find 5 first
Click to expand...
Click to collapse
we probably dont need it, but a lot of ROMs make you download ALL their devices and corresponding files.
Well, I removed the HTC lines from manifest.xml (maybe not a good idea?) but anyway, it finished syncing after.
mbh87 said:
we probably dont need it, but a lot of ROMs make you download ALL their devices and corresponding files.
Click to expand...
Click to collapse
yeah... it's a problem with a simple fix.... if the error was something like "packages_mms_app", then it's a more serious problem.....
does removing that repo mask a larger problem? that's why I'm pushing for OP to start small first by building CM10.1, and learn the environment (instead of posting every single problem he encounters here, and asks for help)
I've only started playing with android source code in March/early april... and these are things that I've learned/picked up since then.
paperWastage said:
yeah... it's a problem with a simple fix.... if the error was something like "packages_mms_app", then it's a more serious problem.....
does removing that repo mask a larger problem? that's why I'm pushing for OP to start small first by building CM10.1, and learn the environment (instead of posting every single problem he encounters here, and asks for help)
I've only started playing with android source code in March/early april... and these are things that I've learned/picked up since then.
Click to expand...
Click to collapse
Understood. I'm syncing up the Cm10 now. Thanks!
Is is best to do this all on Linux, Mac, or Windows?
It isn't possible to do it on windows so one of the other two.
mbh87 said:
It isn't possible to do it on windows so one of the other two.
Click to expand...
Click to collapse
Cool thanks. I just "finished" my compile on my Mac 10.7.8 but there was something about gcc422 not found. I have the latest XCode installed along with Dev tools. So can anyone help cause I didn't see anything with a Google.
I presume a clean Ubuntu is preferred
Sent from my X909 using xda app-developers app
newbcake said:
Cool thanks. I just "finished" my compile on my Mac 10.7.8 but there was something about gcc422 not found. I have the latest XCode installed along with Dev tools. So can anyone help cause I didn't see anything with a Google.
I presume a clean Ubuntu is preferred
Sent from my X909 using xda app-developers app
Click to expand...
Click to collapse
it's preferable
even on ubuntu, you still have to get specific packages: need oracle version of jdk, not openjdk, need to remove some incompatible stuff
heres a guide for ubuntu 12.10
https://git.ngvincent.com/projects/oppo-x909-cm10/wiki/Android-setup
paperWastage said:
it's preferable
even on ubuntu, you still have to get specific packages: need oracle version of jdk, not openjdk, need to remove some incompatible stuff
heres a guide for ubuntu 12.10
https://git.ngvincent.com/projects/oppo-x909-cm10/wiki/Android-setup
Click to expand...
Click to collapse
I tried compiling CM10, and am even having problems with that. Google did not seem to help for this. Here is what I did:
I did the mka, then mka otapackage, and NOTHING is appearing. No zips at all.
Code:
hardware/qcom/media/mm-video/vidc/vdec/src/omx_vdec.cpp:9925:138: warning: format '%d' expects argument of type 'int', but argument 5 has type 'OMX_U32 {aka long unsigned int}' [-Wformat]
make: *** wait: No child processes. Stop.
That is the last fine before it gives me control of terminal again.
newbcake said:
I tried compiling CM10, and am even having problems with that. Google did not seem to help for this. Here is what I did:
I did the mka, then mka otapackage, and NOTHING is appearing. No zips at all.
Code:
hardware/qcom/media/mm-video/vidc/vdec/src/omx_vdec.cpp:9925:138: warning: format '%d' expects argument of type 'int', but argument 5 has type 'OMX_U32 {aka long unsigned int}' [-Wformat]
make: *** wait: No child processes. Stop.
That is the last fine before it gives me control of terminal again.
Click to expand...
Click to collapse
a few tips
typically, compilers only stop when there's an error, not warnings (unless you set flags like -Werror )
compiling is parallelized.... let's say you have a quad core, you can compile 4 projects simultaneously... when you have an error on the first make file, it stops.... but the other 3 projects will continue compiling and outputting logs until they're done (then the scheduler sees the first make file has an error, doesn't execute any more make builds and halts), so the last log file/line might not be showing you the error
For CM10.1, find5 is official now... you can just use brunch instead of breakfast/lunch & mka
paperWastage said:
a few tips
typically, compilers only stop when there's an error, not warnings (unless you set flags like -Werror )
compiling is parallelized.... let's say you have a quad core, you can compile 4 projects simultaneously... when you have an error on the first make file, it stops.... but the other 3 projects will continue compiling and outputting logs until they're done (then the scheduler sees the first make file has an error, doesn't execute any more make builds and halts), so the last log file might not be showing you the error
For CM10.1, find5 is official now... you can just use brunch instead of breakfast & mka
Click to expand...
Click to collapse
In essence, I scour the log for errors?
I just presumed as CM10 already existed on the Oppo Find 5, it would be an error-free compile.
newbcake said:
In essence, I scour the log for errors?
I just presumed as CM10 already existed on the Oppo Find 5, it would be an error-free compile.
Click to expand...
Click to collapse
you could source the log for errors
or just run the compile script again and again.... the scheduler will continue building other packages, but it'll come to a point where it can't build anything else without that broken package.... and hence, the error in the log will be obvious(since everything else is already built, no logs from them)
it should be an error-free compile, but sometimes things could happen (a small tweak in package/A gives some problems when compiling with package/B)
I would say, most likely there's some build package incompatibility in your system.

Categories

Resources