Develop Bugs

Overclocked kernel (2.6.27) - STABLE - "Kanged the code"

Introduction & Performace
I compiled a Hero 2.6.27 kernel with an overclock arround 710 MHz.
It's working perfectly for me, but I don't know how your devices will perform with it.
So be careful.
I won't provide the kernel binary nor an update.zip nor a boot.img.
I will just provide the final source.
There are several guides on how to compile the Hero kernel on the internet ;-)
It's quite easy.
The speed improvement is really good, especially the keyboard on 2.1 ROMs!
Linpack before the OC: 2.3 MFlops and 3.2 MFlops after the OC!
This kernel WILL work on 2.1 ROMs but it will lack the camera.
Best use on 1.5 Cupcake ROMs!
Also it will still show 528 Mhz.
Credits:
phhusson for providing the original patch and helping me out a bit
Teknologist whose kernel source this kernel is based on.
You can find the source here:
http://github.com/maxisma/Hero-OC-kernel/tree/67f94257b5159ea09ec1ed0bbfe818381860abe8/kernel-hero

a 2.1 kernel? thats crazy i want to try it and if my phone gets ruined i will curse your name!! (joking)
but seriously hope it doesnt screw my phone up thanks

Actually it's a 1.5 kernel.
Good work mate!

So any chance you guys pick up the 2.6.29 project again? Since apparently HTC has delayed 2.1 again..
Fantastic work by the way

Yeah! Thats awesome. I must try it now
But the battery lifetime will decrease at 20% ??

You probably should mentoin that some things don't work with this kernel. Or so I read on the CDMA forum.

tristan202 said:
You probably should mentoin that some things don't work with this kernel. Or so I read on the CDMA forum.
Click to expand...
Click to collapse
I'm guessing that the problems your referring to is because of running 2.1 on a 27 kernel

OttarA said:
I'm guessing that the problems your referring to is because of running 2.1 on a 27 kernel
Click to expand...
Click to collapse
Exactly.
10char

Anyone feel like making this into a flashable file for me?
Also a couple of questions:
Can I revert to the "normal" kernel? (and if I flash a new ROM will it replace this kernel? or do I need to do that manually?)
Will overclock widget pick this up or will it still have 528 as its maximum?

You just do an update.zip over your current ROM , if you want to go back, just do a nandroid backup or flash any other ROM, the kernel is always packed with the ROM you flash so updating over it overwrites the old rom

Someone want to compile it for me? I have no idea what to do.

G8D said:
Anyone feel like making this into a flashable file for me?
Click to expand...
Click to collapse
+1 I´m a newbie :/

I'm actually too lazy to make an update.zip too.. ;-)

Re: Overclocked kernel (2.6.27)
I'm actually too lazy to make an update.zip too.. ;-)
Click to expand...
Click to collapse
awfull when thinking of what Android stands for...

It isn't hard, he did state that its easy enough to find a guide on the net. Why not do it yourself if your that fussed?

How do i download the source? The download button does not work

Top right hand corner of that page... was it really that hard

dpi295 said:
How do i download the source? The download button does not work
Click to expand...
Click to collapse
Using a UNIX OS (here: Ubuntu)
1/ Install git:
Code:
sudo apt-get update && sudo apt-get install git-core
2/ setup git a little
Code:
mkdir ./git
cd ./git
git init
3/ Download sources using git
Code:
git clone http://github.com/maxisma/Hero-OC-kernel.git
At this time I've stop here, I'll try to compile it later (hope makefile is well written, I AM NOT a dev), and sure i'll give it as update zip coz is really easy and don't not take much time to sign.

nice to see this change and hope when the official 2.1 K source is released that the same patch can be incorporated into that also.

carbonyle said:
Using a UNIX OS (here: Ubuntu)
1/ Install git:
Code:
sudo apt-get update && sudo apt-get install git-core
2/ setup git a little
Code:
mkdir ./git
cd ./git
git init
3/ Download sources using git
Code:
git clone http://github.com/maxisma/Hero-OC-kernel.git
At this time I've stop here, I'll try to compile it later (hope makefile is well written, I AM NOT a dev), and sure i'll give it as update zip coz is really easy and don't not take much time to sign.
Click to expand...
Click to collapse
haha after a day of tweaking around in ubuntu, i managed to compile it. Well, its a slight improvement i suppose. swiping through the home screens is certainly much snappier. Gonna try the kernel on a 2.1 rom later.

[Request] tun.ko for kernel 2.6.32.15-ge2fb08e

Will someone please make a tun.ko for the new released kernel or send links on how to and the tools needed? Thanks in advanced.

until HTC releases the source for kernel 2.6.32.15-ge2fb08e
we can not compile a "Real" tun.ko
I modified the version string on the current released code 2.6.32.15-g746f4f0 to ge2fb08e and am compiling it right now.
This will allow it to load and as long as there are no major changes in the kernel it could work for you. It will at least load so you can test it.
I will up load it as soon as it is done compiling
Bill Tedeski
dwertz said:
Will someone please make a tun.ko for the new released kernel or send links on how to and the tools needed? Thanks in advanced.
Click to expand...
Click to collapse

That would be great. Thank you
btedeski said:
until HTC releases the source for kernel 2.6.32.15-ge2fb08e
we can not compile a "Real" tun.ko
I modified the version string on the current released code 2.6.32.15-g746f4f0 to ge2fb08e and am compiling it right now.
This will allow it to load and as long as there are no major changes in the kernel it could work for you. It will at least load so you can test it.
I will up load it as soon as it is done compiling
Bill Tedeski
Click to expand...
Click to collapse

to build it yourself
you can get instructions for an android build system here
http://source.android.com/source/download.html
download the source from HTC http://developer.htc.com/
you will need a .config file should be /proc/config.gz on your phone, uncompress and rename to .config
http://code.google.com/p/android/issues/detail?id=3803
you will need to setup your path to include the build environment you download from source.android.com I will put mine at the end of this
edit the Makefile and change EXTRAVERSION = .15-ge2fb08e to contain version string you need
do a make modules
as long as the kernel has not changed to much from the base source HTC has provided it should work.....
I added the folllowing path statements to my .bash_profile
PATH=$PATH:$HOME/bin
PATH=$PATH:/opt/mydroid/prebuilt/linux-x86/
PATH=$PATH:/opt/mydroid/prebuilt/linux-x86/toolchain/arm-eabi-4.4.0/
PATH=$PATH:/opt/mydroid/prebuilt/linux-x86/toolchain/arm-eabi-4.4.0/arm-eabi/bin/
PATH=$PATH:/opt/mydroid/prebuilt/linux-x86/toolchain/arm-eabi-4.4.0/arm-eabi/lib/
PATH=$PATH:/opt/mydroid/prebuilt/linux-x86/toolchain/arm-eabi-4.4.0/bin/
PATH=$PATH:/opt/mydroid/prebuilt/linux-x86/toolchain/arm-eabi-4.4.0/lib/
PATH=$PATH:/opt/mydroid/prebuilt/linux-x86/toolchain/arm-eabi-4.4.0/lib32/
PATH=$PATH:/opt/mydroid/prebuilt/linux-x86/toolchain/arm-eabi-4.4.0/libexec/
PATH=$PATH:/opt/mydroid/prebuilt/linux-x86/toolchain/arm-eabi-4.4.0/share/
PATH=$PATH:/user/lib/gcc/i686-redhat-linux/4.4.4./libgcc.a
dwertz said:
Will someone please make a tun.ko for the new released kernel or send links on how to and the tools needed? Thanks in advanced.
Click to expand...
Click to collapse

Tun.ko vermagic=2.6.32.15-ge2fb08e
the attached tun.ko is build from the released HTC source with the version string changed to ge2fb08e
as long as the kernel has not changed much on the leaked kernels this should load and work
[[email protected] net]$ strings tun.ko | grep magic
vermagic=2.6.32.15-ge2fb08e preempt mod_unload ARMv7

You are awesome. Thanks
update - The tun.ko does work so it looks like the leaked kernel did not change much.
I will try and learn how to make one. I have ubuntu in vmware to use. Does this have to be a linux box or can it be done on a MacOSX?

Do you have the cifs.ko and nls_utf8.ko for 2.6.32.15-ge2fb08e?
I am trying to get cifs working on my evo.

Never mind. Thanks for everyone's help.
Here is what I did to get the cifs.ko and nls_utf8.ko (from here http://forum.xda-developers.com/showthread.php?t=754793) to work for my kernel.
I took the cifs.ko and nls_utf8.ko created by "snq-" and used a hex editor to edit the kernel number to match mine.
That was all, no re-compile needed. then I followed the rest of the steps laid out by snq- to install the files and test them.
Lastly I installed CifsManager which is available on Market and everything worked.
I am able to connect to my network only locally. Comcast seems to be blocking ports so I cannot access smb from outside my network.

please post link for cifs.ko
If you have a working cifs.ko for this kernel, please post a link!
Thanks!

Any Suggestions
Any where else to go for a tun.ko for ge2fb08e? I've almost exhausted my searching. Thanks!

i am trying to set up OpenVPN on my Evo with the same ge2fb08e kernel version. i installed the pre-requisites, but do not have the tun driver. can you send me a copy of the tun.ko zip? TheEdge88

SR, You can download the tun.ko file in the previous post, but you need to post 9 more times before you can access it. It worked for me and now I can connect to the OpenVPN server. I think I still have a problem with routing though.

[kernel][For CM7 only][LAZY,TUN,CIFS,ondemand tweaks]Adam's kernel[02/10/2012]

Hi guys.
I'm a newbie about compiling kernel,and this is my personal compiled kernel based on Hashcode's git source( stock branch),also with some tweaks which I think can improve the responsiveness without bringing extra power consumption( or as little as possible).
This kernel will also be my testing platform to do some MOD porting from Ezekeel's GLaDOS kernel.
Thanks to all great developers in XDA , especially:
-Hashcode & intersectRaven : for their git repo alone with a working .config. alone
-Ezekeel : for his so many great MODs on Nexus S(my phone) and Galaxy Nexus(will be my next phone)
-whistlestop : For his improvement on CM7 (I'm completely unfamiliar with the user land things about android, without him I'll be still using the stock ROM)
Features:
-LAZY cpufreq governor ported from GLaDOS(http://forum.xda-developers.com/showthread.php?t=1276092) with some tweaks.
-TUN compiled into kernel (especially important for people living in regions with strict network censorship like CHINA! F*ck the GreatFireWall)
-CIFS compiled into kernel along with NLS-utf8 for non-ASCII characters.( Now who cares the size of the internal flash?)
-Minor tweaks on ondemand governor to improve responsiveness.
ToDo:
-BLX porting from GLaDOS(http://forum.xda-developers.com/showthread.php?t=1257497)
-TouchWake porting from GLaDOS(http://forum.xda-developers.com/showthread.php?t=1239240)
Because I'm a newbie on kernel development and the MODs above both have some code in hardware drivers, so it will be a long time before accomplish.
The kernel source code seems to work on both CM9 and stock ROM.
So later I'll upload the flashable kernel zip for CM9 and stock ROM after some test.
Download:
CM7:http://www.mediafire.com/?2nsm9lb7ylm3gnl
In next post,I'll post the procedure for compiling the kernel and the wifi driver.

In this post I'll post the detailed procedure of compile the kernel.
1.Get the kernel source and wifi driver:
If you want to compile the kernel based on my tweak,
you can use my repo (fork from hashcode's source):https://github.com/adam900710/kernel_omap(branch stock)
Or you can just start from scratch without my tweak:https://github.com/KFire-Android/kernel_omap(only branch stock is tested)
If you are unfamiliar with git,you can learn it on the GitHub's help page:
http://help.github.com/
Tiwlan drivers from neither omapzoom nor CM7 works due the lack of given functions.
ONLY the wifi driver from Amazon seems work. So you need to download the whole zip from Amazon:
http://www.amazon.com/gp/help/customer/display.html?nodeId=200203720
The wifi driver locates in mydroid/hardware/ti/wlan/wl1283
2.Get the cross compile toolchain:
Yes,you can build from scratch according to CLFS(http://trac.cross-lfs.org/),but a newbie like me is glad to use the pre-compiled toolchain like sourcery G++. Omappedia recommanded 2010q1-202(https://sourcery.mentor.com/sgpp/lite/arm/portal/release1293), so I use it as the toolchain and it works well.
The self-extrated installation program will install the toolchian without any problem.
Also other toolchain is available like linaro , but according to the post by Ezekeel (http://rootzwiki.com/topic/10855-researchmythbuster-optimized-compiler-toolchains/) , there seems no obvious difference. So the out-of-box sourcery G++ is a good choice.
3.Compile the kernel.
Code:
cd kernel_omap #cd into your kernel
make mrproper #clean the source tree( normally you can skip)
make otter_android_defconfig #get the default .config (also you can copy it manually)
make ARCH=arm menuconfig #if you want,you can tweak the config of the kernel.This needs headers of ncurse
make ARCH=arm CROSS_COMPILE=arm-none-linux-gnueabi -j4 #you should make sure that the toolchain is in you PATH
After some CPU time, the kernel is built, in arch/arm/boot/zImage. Also the modules is built in other places.
Since I built all TUN/CIFS and so on into kernel,so there is no need to install the modules.
4.Compile the wifi driver:
Code:
cd mydroid/hardware/ti/wlan/wl1283/platforms/os/linux/ #cd into the building folder
make ARCH=arm KERNEL_DIR=/home/adam/kernel_omap CROSS_COMPILE=arm-none-linux-gnueabi- TNETW=1273 -j4 #you need to change the path of KERNEL_DIR
CAUTION: DO NOT add DEBUG=n OR DELETE TNETW=1273....
I don't know why,but if you do so,the wifi driver won't work properly.
5. Package the kernel into boot.img with ramdisk.
Thanks to DooMLord , in his git repo , you can download the tools needed.
https://github.com/DooMLoRD/Kindle-Fire-Kernel/tree/master/final_files
Only minor changes are needed for the path ,every thing elso works fine.
You can use the ramdisk extracted from any CM7 boot.img using the perl script.
Then just ./make_bootimg will do everythin for you.

Great i will test it
Sent from my GT-P1000 using xda premium

Best kernel.
I'm running on CM7 with this kernel and get super-perfomance and perfect power consump (Using Lazy governor).

It's not support OC??
Sent from my GT-P1000 using xda premium

acax456 said:
It's not support OC??
Sent from my GT-P1000 using xda premium
Click to expand...
Click to collapse
Sorry, not support yet.
Maybe I'll add OC in next release.But I don't recommend OC because the power consumption...

can you able otg usb support ???
is this possible

Please add .zip for CM9!

Can I flash this from the recovery? or do I have to use adb??

please.update your kernel.since its been two months from last.update
Sent from my GT-P1000 using xda premium

How to build an AOSP Kernel?

So I pretty much would like to start building my own kernels and Roms from AOSP, but not sure where to start. I have downloaded the SDK already, and started downloaded some file with git and these commands:
git clone https://android.googlesource.com/kernel/omap
cd omap
git checkout origin/android-omap-tuna-3.0-mr0
but the guides I've been reading don't offer much more help. And then there is a toolchain of some sort? I can get my way around linux fairly well and have built my own kernels about a year and a half ago for my Vibrant, but took a completely different course.
Was wondering if someone could point me in the right direction, thanks!

You're on the right track. Use Linux ubuntu, install all the packages, the Android tool chain, then just clone the aokp kernel like you showed. But you had the wrong repo link. Go to team kangs github page, go to the nexus kernel, then at the top will be their git link in a box.
Git clone "link"
Then just run the make command in terminal. Make sure you navigated yo the downloaded kernel folder.

RogerPodacter said:
You're on the right track. Use Linux ubuntu, install all the packages, the Android tool chain, then just clone the aokp kernel like you showed. But you had the wrong repo link. Go to team kangs github page, go to the nexus kernel, then at the top will be their git link in a box.
Git clone "link"
Then just run the make command in terminal. Make sure you navigated yo the downloaded kernel folder.
Click to expand...
Click to collapse
Thanks a lot, will try that. The link on their page is AOSP?
Sent from my Galaxy Nexus using XDA

The guy is asking us on how to clone AOSP tuna kernel tree, and you tell him to clone teamKang kernel project?
@op, no, you dont have the incorrect url. Clone from there, then checkout branch android-omap-3.0.
Type:
'make tuna_defconfig'
'make -j4'
You'll then have a zimage in arch/arm/boot, which you'll need to merge with a compatible ramdisk (either by fastboot or manually).
sent from my i9250

bk201doesntexist said:
The guy is asking us on how to clone AOSP tuna kernel tree, and you tell him to clone teamKang kernel project?
@op, no, you dont have the incorrect url. Clone from there, then checkout branch android-omap-3.0.
Type:
'make tuna_defconfig'
'make -j4'
You'll then have a zimage in arch/arm/boot, which you'll need to merge with a compatible ramdisk (either by fastboot or manually).
sent from my i9250
Click to expand...
Click to collapse
Sweet will continue with these steps and look onto the merge
Sent from my Galaxy Nexus using XDA

bk201doesntexist said:
The guy is asking us on how to clone AOSP tuna kernel tree, and you tell him to clone teamKang kernel project?
@op, no, you dont have the incorrect url. Clone from there, then checkout branch android-omap-3.0.
Type:
'make tuna_defconfig'
'make -j4'
You'll then have a zimage in arch/arm/boot, which you'll need to merge with a compatible ramdisk (either by fastboot or manually).
sent from my i9250
Click to expand...
Click to collapse
Oh holy crap haha I completely thought he asked about aokp kernel, my bad I didn't read.

AOSP kernel for HTC Explorer/Pico
Can you tell me how to build aosp kernel for htc explorer?

monishvster said:
Can you tell me how to build aosp kernel for htc explorer?
Click to expand...
Click to collapse
Just do the same thing, but instead sync the htc kernel rather than the nexus. Go search and find out if source code has been released for that phone.
Then just run the make command.

Somebody call 911, we've been hijacked
Note: 'make tuna_defconfig' is for maguro, i dont know what is the name of default config file for the htc, why should we? User should refer to htc explorer subforum @xda or to kernel documentation.
Sent from my i9250

Making a CM11.0 kernel for E980?

Hello fellow OGPers...
So I've been jumping from ROM to ROM for a solid few months now. Really enjoyed my time as an Android user and soaked in a lot. I've been learning (well... teaching myself) about Linux and other related things. But I've been busy with classes, a social life, and other commitments. Anyway let me cut to the chase. I really enjoyed it in 4.3 ROMs when I could use all the settings on the AOSP custom kernel for our device and among other things liked the experience of a custom kernel. It's about time we got one for 4.4.x Kitkat... right?
I am currently running Windows 7 (if specs are important I will post them) with a Linux Mint distro (both are 64-bit). I have downloaded the CM11.0 from github and a few toolchains. I haven't untared them yet or anything, but I have some. One is specialized for Cortex A-15, which I read our device's CPU is much alike to. Anyway I just wanted some help getting started with making a kernel is what it comes down to. I have basic Linux knowledge and that's about it. I just want to get a custom kernel out and then maybe in the future get a nice battery-optimized kernel out. I forgot to grab a kernel patch and I'll download it tomorrow probably. But I really don't know where to start at all. Do I need knowledge of anything or some more experience knowledge? If anybody can point me in a good direction that would be great. Everything is appreciated.
Oh and feel free to PM me answers as well if it's easier or more convenient for you.
Thanks guys!

This would be great as we need a kernel Dev ... Good luck on your journey !
2SHAYNEZ

If you only want to compile kernel,clone this repository.
git clone https://github.com/CyanogenMod/lge-kernel-gproj/tree/cm-11.0
make any change you want to do with the source.
Download android toolchain and extract it.
Compile the kernel sources with
export ARCH=arm CROSS_COMPILE=/path.to.toolchain/bin/arm-eabi- && make cyanogenmod_e980_defconfig && make -j#
(# is the number of your computer cores +1)
you will get zimage in /arch/arm/boot folder
Using boot.img(the kernel) from official CM build zip to get the ramdisk is easier
abootimg -x boot.img
you will see:
writing boot image config in bootimg.cfg
extracting kernel in zImage
extracting ramdisk in initrd.img
put the extracted initrd.img and bootimg.cfg to /arch/arm/boot(where your compiled zimage are)
run:
abootimg --create boot.img -f bootimg.cfg -k zImage -r initrd.img
You will get the boot.img!
This is the complete kernel!
Use any previous kernel zip, and replace the boot.img inside the zip with yours.
Flash it and test it.
My TWRP 2.8.0.0 or TWRP from freegee or Philz Touch will auto lokify the kernel.
Wing

Attached is the kernel.zip that i use.
Replace the your finished boot.img with it~~
Wing

BTW i am not programmer, but i am a very long time gentoo linux and archlinux user, long before android exist~

mukwing said:
If you only want to compile kernel,clone this repository.
git clone https://github.com/CyanogenMod/lge-kernel-gproj/tree/cm-11.0
make any change you want to do with the source.
Download android toolchain and extract it.
Compile the kernel sources with
export ARCH=arm CROSS_COMPILE=/path.to.toolchain/bin/arm-eabi- && make cyanogenmod_e980_defconfig && make -j#
(# is the number of your computer cores +1)
you will get zimage in /arch/arm/boot folder
Using boot.img(the kernel) from official CM build zip to get the ramdisk is easier
abootimg -x boot.img
you will see:
writing boot image config in bootimg.cfg
extracting kernel in zImage
extracting ramdisk in initrd.img
put the extracted initrd.img and bootimg.cfg to /arch/arm/boot(where your compiled zimage are)
run:
abootimg --create boot.img -f bootimg.cfg -k zImage -r initrd.img
You will get the boot.img!
This is the complete kernel!
Use any previous kernel zip, and replace the boot.img inside the zip with yours.
Flash it and test it.
My TWRP 2.8.0.0 or TWRP from freegee or Philz Touch will auto lokify the kernel.
Wing
Click to expand...
Click to collapse
Wow thank you so much... definitely going to give this a shot today! So I didn't have to download the 12 GB source... good to know.
Oh and one more thing. Is there any difference from building a CM11 kernel vs an AOSP 4.4.x kernel? I figured since most of our device's ROMs are CM based this would work fine... Thank you very much for the information at hand! Appreciated.

CM kernel is different from AOSP kernel from what i know.
CM kernel is base on CAF(which is optimized for msm chip) and AOSP kernel base on google original code.
They are a bit different so imcompatible from what i know.
Wing

When I compile there are loads of errors and eventually it stops (at different times each attempt...) anyway, the first thing I notice is this:
warning: (ARCH_MSM7X27 && ARCH_MSM8960 && ARCH_MSM8930 && ARCH_MSM8974) selects DONT_MAP_HOLE_AFTER_MEMBANK0 which has unmet direct dependencies (SPARSEMEM)
warning: (ARCH_MSM7X27 && ARCH_MSM8960 && ARCH_MSM8930 && ARCH_MSM8974) selects DONT_MAP_HOLE_AFTER_MEMBANK0 which has unmet direct dependencies (SPARSEMEM)
Is that anything I have to worry about? I can't find anything online about it. Thanks in advance.

First, is it unmodified cm kernel sources?
Make sure to use unmodified sources to test building first.
Somes errors can safely ignored.The msm8960 error can safty ignore. It has nothing to do with our device.
If it failed to build, try using option like -Xlint.
Sometimes, using older build of toolchain is easier to build, e.g.gcc4.7 or 4.8
Gcc 4.9 always failed to build e980 cm kernel.

mukwing said:
First, is it unmodified cm kernel sources?
Make sure to use unmodified sources to test building first.
Somes errors can safely ignored.The msm8960 error can safty ignore. It has nothing to do with our device.
If it failed to build, try using option like -Xlint.
Sometimes, using older build of toolchain is easier to build, e.g.gcc4.7 or 4.8
Gcc 4.9 always failed to build e980 cm kernel.
Click to expand...
Click to collapse
Ohhh okay. Yeah it's all unmodified and I've downloaded tons of "needed" packages (including most likely unnessesary ones too). I'm using a 4.9 GCC. That might be it. Okay thanks. I'll give another shot tomorrow when I have access to my VM.

Kernel has been successfully compiled. Check here for download and further discussion...
http://forum.xda-developers.com/optimus-g-pro/orig-development/kernel-e980-kernel-t2872514