Database Users

[Q] Kernel for AOSP build?

As the topic says. After 3 days of working, I finally built Gingerbread 2.3.7_r1 from sources. Now I got hit by another problem: Where I could get a kernel/source which is compatible with it? I'm stuck in the "Huawei" screen at the moment.
I would love to get my build up and running. Thanks in advance.

Unrealized said:
As the topic says. After 3 days of working, I finally built Gingerbread 2.3.7_r1 from sources. Now I got hit by another problem: Where I could get a kernel/source which is compatible with it? I'm stuck in the "Huawei" screen at the moment.
I would love to get my build up and running. Thanks in advance.
Click to expand...
Click to collapse
Huawei 2.6.35 will do fine. I'd suggest TomGiordano's kernel_huawei on 2.6.35 branch in GitHub.
Sent from my U8800 using Tapatalk 2

Thank you. Should I dump the newer propietary libs from the stock rom as well?
Also, seems like the kernel tree doesn't like me:
Code:
In file included from arch/arm/mach-msm/proc_comm.c:27:
arch/arm/mach-msm/smd_private.h:79:2: error: #error No SMD Package Specified; aborting
make[1]: *** [arch/arm/mach-msm/proc_comm.o] Error 1
make: *** [arch/arm/mach-msm] Error 2
Edit: hmm, now it started to compile with hw7x30_defconfig

Unrealized said:
Thank you. Should I dump the newer propietary libs from the stock rom as well?
Also, seems like the kernel tree doesn't like me:
Code:
In file included from arch/arm/mach-msm/proc_comm.c:27:
arch/arm/mach-msm/smd_private.h:79:2: error: #error No SMD Package Specified; aborting
make[1]: *** [arch/arm/mach-msm/proc_comm.o] Error 1
make: *** [arch/arm/mach-msm] Error 2
Click to expand...
Click to collapse
Stock ROM proprietary libs will do fine.
About the kernel error - did you do make hw7x30_defconfig?

It still seems to hang in the Huawei screen. It does the same with stock boot.img
I'm using this this device tree.
My build process is like this:
Code:
. build/envsetup.sh
lunch huawei_u8800-userdebug
make -j2
make otapackage
java -Xmx512m -jar out/host/linux-x86/framework/signapk.jar build/target/product/security/testkey.x509.pem build/target/product/security/testkey.pk8 out/target/product/u8800/huawei_u8800-ota-eng.unrealized.zip signed.zip
Not sure what's wrong here, with my old Gio it worked fine. Any help would be appreciated.

Unrealized said:
It still seems to hang in the Huawei screen. It does the same with stock boot.img
I'm using this this device tree.
My build process is like this:
Code:
. build/envsetup.sh
lunch huawei_u8800-userdebug
make -j2
make otapackage
java -Xmx512m -jar out/host/linux-x86/framework/signapk.jar build/target/product/security/testkey.x509.pem build/target/product/security/testkey.pk8 out/target/product/u8800/huawei_u8800-ota-eng.unrealized.zip signed.zip
Not sure what's wrong here, with my old Gio it worked fine. Any help would be appreciated.
Click to expand...
Click to collapse
Does ADB work or is it completely stuck?

running adb shell works. I guess it has something to do with the init?
Edit: added dmesg.. Seem to be a lot of problems there. I'd appreciate any help. If I could get my first build to succeed I would be able to work myself then.
Edit2: Also, I think there are problems in the device tree I'm using as I couldn't find a clean one. I'm redownloading the 2.3.7_r1 tree once again, I hope someone could link me the device tree to use.

[GUIDE] Build Your Own Android Kernel{Easiest and Fastest Way] [Using The NDK]

This is the quickest and easiest way to build your own Kernel using the Android NDK
Note:I will be reffering to the following
yourusername=the username that you are logged in to
devicecode=The codename for the device you are building a kernel for(Google it on what is the code name
Click to expand...
Click to collapse
Note:I am only showing you how to make it to be flashed via CWM. If you wan't a tuttorial on how to make a boot.img comment and i will make it.
What you will need
Ubuntu 12.04 or newer
A lot of patience
Click to expand...
Click to collapse
Step 1:Installing the required files
Open a terminal and type the following (copy-paste)
Code:
sudo apt-get install -y build-essential kernel-package libncurses5-dev bzip2
This will install the packages you need
Download the kernel source code for your device (This is important. We are going to build the kernel from this)
For HTC http://htcdev.com
For Samsung http://opensource.samsung.com/
Click to expand...
Click to collapse
Find your device and click Download
Download The NDK
Move the NDK and your device Kernel source code in your home folder
Extract both the NDK and your kernel source code
Rename the folder were you have the NDK installed to NDK. And rename the folder where you have the kernel installed to Kernel
Now we are ready to build.
Step 2:Tweaking the kernel
Navigate to the kernel folder
Code:
cd /home/[COLOR="red"]yourusername[/COLOR]/Kernel
Next we need to point the NDK tools to the kernel folder
Code:
export CROSS_COMPILE=/home/[COLOR="red"]yourusername[/COLOR]/NDK/toolchains/arm-linux-androideabi-4.4.3/prebuilt/linux-x86/bin/arm-linux-androideabi-
We've pointed the NDK tolls and now we can use the NDK to tweak the kernel
Next we need to clean the previous work just incase:
Code:
make clean && make mrproper
If everything goes well you are good to go. If you have an Error(s) then something is wrong.
Now we are ready.
Next we need to add the kernel features to the NDK so we can modife them
Firs open your kernel source code folder go to arch/arm/configs
Here you will all the configs.
We need only one. Find that. It is called:Yourdevicecode_somethingbalblabla.defconfig
Rename it to maker.defconfig
Now type this in your terminal
Code:
make maker.defconfig
Now we need to tweak those configs.
Code:
make menuconfig
A user interface will pop out showing you all the tweaks you can do. I am not going to show you whow to use it. Google it(Sorry don't have that enough space)
When you are ready close the UI and click SAVE
Step 3 Building
So we tweaked the Kernel and we are ready to build.
make -j# ARCH=arm
Click to expand...
Click to collapse
Note:The # means the number of CPU cores +1. For example my device has a quad core CPU and I will type
Code:
make -j5 ARCH=arm
This will build the Kernel. It will take about 10 minutes.
Step 4: Finalizing
Now that kernel is ready you will need to find a kernel flashable zip for your device(Just google it)
Download the zip file and leave it in your home folder.
Now got to your kernel source and go to arch/arm/boot and copy zImage
Paste your Zimage to the zip file and replace it.
Now we need the WI-FI modules otherwise your WI-FI will not be working
Go to the Kernel source code folder and go to driver/net/wireless/bcm4329_204 and copy bcm4329.ko
Got the zip file go to the System folder and replace it's bcm4329.ko with your bcm4329.ko
You are ready all you need to do is flash it.

mmm..interesting...i always build without the ndk,but simpy sdk.what's the advantages?
and i usually do the git clone to download all the sources,in my case nexus7 and maguro.
thanks for this!

Well i am just waiting for Samsung to release JB sources for N7000 to start learning on how to create my own kernel
This is a pretty good base! Thanks

Sorry if this is a stupid question but do we need 64 bit like we do for ROM compiling, or will this work fine for 32 bit (I'm running Ubuntu 12.10 32 bit). Also, roughly how much is there to download? Thanks

:good: Thanks! I'm use Ubuntu 10.04 64 bit don't know if can?

HTCDreamOn said:
Sorry if this is a stupid question but do we need 64 bit like we do for ROM compiling, or will this work fine for 32 bit (I'm running Ubuntu 12.10 32 bit). Also, roughly how much is there to download? Thanks
Click to expand...
Click to collapse
I am not sure. I think you can on 32 bit try it the download takes all together about 500 MB

TheWizardOfROMs said:
I am not sure. I think you can on 32 bit try it the download takes all together about 500 MB
Click to expand...
Click to collapse
Thanks, do you know how large all the files are once installed on the system (you might have guessed I'm slightly short of space atm)

HTCDreamOn said:
Thanks, do you know how large all the files are once installed on the system (you might have guessed I'm slightly short of space atm)
Click to expand...
Click to collapse
About 700 MB

sert00 said:
mmm..interesting...i always build without the ndk,but simpy sdk.what's the advantages?
and i usually do the git clone to download all the sources,in my case nexus7 and maguro.
thanks for this!
Click to expand...
Click to collapse
What are you building? If a whole ROM like AOSP,AOKP,PA or CM then they typically bundle the toolchain/kernel with the source, making this totally unneeded.
---------- Post added at 12:18 PM ---------- Previous post was at 12:17 PM ----------
HTCDreamOn said:
Sorry if this is a stupid question but do we need 64 bit like we do for ROM compiling, or will this work fine for 32 bit (I'm running Ubuntu 12.10 32 bit). Also, roughly how much is there to download? Thanks
Click to expand...
Click to collapse
No 32-bit is fine, just install the right libraries. I actually believe that you can compile a ROM on 32-bit as well.
Self-Plug http://forum.xda-developers.com/showthread.php?t=1748297

Also just to warn users, the above defconfig convention is just that, a convention. The author of a kernel can name the defconfig whatever they want, so it is something to keep in mind.
Sent from my SCH-R950 using Tapatalk 2

thewadegeek said:
What are you building? If a whole ROM like AOSP,AOKP,PA or CM then they typically bundle the toolchain/kernel with the source, making this totally unneeded.
---------- Post added at 12:18 PM ---------- Previous post was at 12:17 PM ----------
No 32-bit is fine, just install the right libraries. I actually believe that you can compile a ROM on 32-bit as well.
Self-Plug http://forum.xda-developers.com/showthread.php?t=1748297
Click to expand...
Click to collapse
i builded some kang rom for personal use,but lately only kernels (for my nexus devices and 2 emebedded system board like in my sig.

Thanks for the guide, but unfortunately I am getting errors during compilation:
Code:
make -j3 ARCH=arm
CHK include/linux/version.h
CHK include/generated/utsrelease.h
HOSTCC scripts/kallsyms
HOSTCC scripts/bin2c
CC scripts/mod/empty.o
arm-eabi-gcc: No such file or directory
Is your PATH set correctly?
make[2]: *** [scripts/mod/empty.o] Error 2
make[1]: *** [scripts/mod] Error 2
make[1]: *** Waiting for unfinished jobs....
make: *** [scripts] Error 2
I am trying to compile the Andromadus 3.0 kernel for HTC Vision, I'd really appreciate some help. I'm using Ubuntu 12.10 32 bit and the Android NDK.

TheWizardOfROMs said:
This is the quickest and easiest way to build your own Kernel using the Android NDK
Note:I will be reffering to the following
Note:I am only showing you how to make it to be flashed via CWM. If you wan't a tuttorial on how to make a boot.img comment and i will make it.
What you will need
Step 1:Installing the required files
Open a terminal and type the following (copy-paste)
Code:
sudo apt-get install -y build-essential kernel-package libncurses5-dev bzip2
This will install the packages you need
Download the kernel source code for your device (This is important. We are going to build the kernel from this)
Find your device and click Download
Download The NDK
Move the NDK and your device Kernel source code in your home folder
Extract both the NDK and your kernel source code
Rename the folder were you have the NDK installed to NDK. And rename the folder where you have the kernel installed to Kernel
Now we are ready to build.
Step 2:Tweaking the kernel
Navigate to the kernel folder
Code:
cd /home/yourusername/Kernel
Next we need to point the NDK tools to the kernel folder
Code:
export CROSS_COMPILE=/home/yourusername/NDK/toolchains/arm-linux-androideabi-4.4.3/prebuilt/linux-x86/bin/arm-linux-androideabi-
We've pointed the NDK tolls and now we can use the NDK to tweak the kernel
Next we need to clean the previous work just incase:
Code:
make clean && make mrproper
If everything goes well you are good to go. If you have an Error(s) then something is wrong.
Now we are ready.
Next we need to add the kernel features to the NDK so we can modife them
Firs open your kernel source code folder go to arch/arm/configs
Here you will all the configs.
We need only one. Find that. It is called:Yourdevicecode_somethingbalblabla.defconfig
Rename it to maker.defconfig
Now type this in your terminal
Code:
make maker.defconfig
Now we need to tweak those configs.
Code:
make menuconfig
A user interface will pop out showing you all the tweaks you can do. I am not going to show you whow to use it. Google it(Sorry don't have that enough space)
When you are ready close the UI and click SAVE
Step 3 Building
So we tweaked the Kernel and we are ready to build.
Note:The # means the number of CPU cores +1. For example my device has a quad core CPU and I will type
Code:
make -j5 ARCH=arm
This will build the Kernel. It will take about 10 minutes.
Step 4: Finalizing
Now that kernel is ready you will need to find a kernel flashable zip for your device(Just google it)
Download the zip file and leave it in your home folder.
Now got to your kernel source and go to arch/arm/boot and copy zImage
Paste your Zimage to the zip file and replace it.
Now we need the WI-FI modules otherwise your WI-FI will not be working
Go to the Kernel source code folder and go to driver/net/wireless/bcm4329_204 and copy bcm4329.ko
Got the zip file go to the System folder and replace it's bcm4329.ko with your bcm4329.ko
You are ready all you need to do is flash it.
Click to expand...
Click to collapse
will work with an ics device like amazon kindle fire?
Sent from my KFTT using xda app-developers app

HTCDreamOn said:
Thanks for the guide, but unfortunately I am getting errors during compilation:
Code:
make -j3 ARCH=arm
CHK include/linux/version.h
CHK include/generated/utsrelease.h
HOSTCC scripts/kallsyms
HOSTCC scripts/bin2c
CC scripts/mod/empty.o
arm-eabi-gcc: No such file or directory
Is your PATH set correctly?
make[2]: *** [scripts/mod/empty.o] Error 2
make[1]: *** [scripts/mod] Error 2
make[1]: *** Waiting for unfinished jobs....
make: *** [scripts] Error 2
I am trying to compile the Andromadus 3.0 kernel for HTC Vision, I'd really appreciate some help. I'm using Ubuntu 12.10 32 bit and the Android NDK.
Click to expand...
Click to collapse
Check your toolchain definition, looks like your path is wrong.

thewadegeek said:
Check your toolchain definition, looks like your path is wrong.
Click to expand...
Click to collapse
Thanks, you're right my path was wrong, but now I have fixed all the problems and it appears to compile successfully however there is no zImage in arch/arm/bin. Any suggestions? Thanks

HTCDreamOn said:
Thanks, you're right my path was wrong, but now I have fixed all the problems and it appears to compile successfully however there is no zImage in arch/arm/bin. Any suggestions? Thanks
Click to expand...
Click to collapse
Try building it again. Be sure to clean the source folder before you start

TheWizardOfROMs said:
Try building it again. Be sure to clean the source folder before you start
Click to expand...
Click to collapse
Thanks very much, I'd been recommended using Linaro tool chain instead and it works perfectly now, booting and WiFi and all. If I can learn some more advanced modding stuff to do to it then I'll release it in the Vision forums and I'll make sure to link to this guide

I installed Ubuntu on my windows laptop.my computer stars are 3Gigs of memory with 140 Gigs of available free space.Do I have enough space and is my laptop good enough to build kernels on.and I do use Ubuntu 12.04 to build kernels correct.I'm sorry I'm all new to this I just would like to be able to build a kernel for my sensation and HTC one which I will have next week.thanks very much for your time and expertise.
Sent from my HTC Sensation using xda app-developers app

rp56 said:
I installed Ubuntu on my windows laptop.my computer stars are 3Gigs of memory with 140 Gigs of available free space.Do I have enough space and is my laptop good enough to build kernels on.and I do use Ubuntu 12.04 to build kernels correct.I'm sorry I'm all new to this I just would like to be able to build a kernel for my sensation and HTC one which I will have next week.thanks very much for your time and expertise.
Sent from my HTC Sensation using xda app-developers app
Click to expand...
Click to collapse
I compiled with Ubuntu 12.10 and only 2 GB of RAM, and only 30GB free space. The tool chain and kernel really doesn't use up much room at all. As long as you don't go OTT on the -jx bit (I do -j3 as I've got a lowly core 2 duo) you should be fine. By the way if you get errors and you're path is definitely correct, then try with the Linaro tool chain instead.

got an error something like, "make ** [vm.virtual], waiting for unfinished jobs..." then stops, going to try new defconfig and new toolchain

[LOLLIPOP] Xperia AOSP Project

hi all
we have included this device in open devices project
you can check news about project on
http://developer.sonymobile.com/know.../open-devices/
feel free to fork, build, fix and push back
Br
J

Wohooo! Finally! [emoji106] [emoji2] [emoji3]

Excellent! An AOSP ROM is the only thing I can think is missing from an otherwise perfect device.
GCC here we come..

Andoroid L (5.0) code, binaries and guides are published

No working camera or modem, looks like we've still got awhile guys...

great news,thankss

nice

I'm syncing it now. I'm going to do a blind build (not changing anything just going with what's already there) because I have yet to unlock my bootloader and won't until they can figure out a way so at least the camera and noise cancellation don't get messed up when unlocking (if I go back to a sony stock rom I know it won't matter on AOSP)

graffixnyc said:
I'm syncing it now.
Click to expand...
Click to collapse
Preparing to build as well. Like you, I haven't BL unlocked and won't until the DRM issues are resolved.

jerpelea said:
Andoroid L (5.0) code, binaries and guides are published
Click to expand...
Click to collapse
Your work is really appreciated. FYI, I convinced a friend to buy a Z3C in large part due to your AOSP commitment. [emoji106]

Guessing we'll need to reverse engineer the camera and modem binaries? Is that right?

illogic6 said:
Guessing we'll need to reverse engineer the camera and modem binaries? Is that right?
Click to expand...
Click to collapse
no

Reverse Engeneering
In other words - SONY will deliver the required drivers or better all required driver will be there in a while...

I get compile error:
Code:
external/bluetooth/bluedroid/main/../btif/co/bta_av_co.c: In function 'bta_av_audio_sink_getconfig':
external/bluetooth/bluedroid/main/../btif/co/bta_av_co.c:557:52: error: 'p_sink' undeclared (first use in this function)
if (bta_av_co_audio_sink_has_scmst(p_sink))
^
external/bluetooth/bluedroid/main/../btif/co/bta_av_co.c:557:52: note: each undeclared identifier is reported only once for each function it appears in
make: *** [out/target/product/aries/obj/SHARED_LIBRARIES/bluetooth.default_intermediates/../btif/co/bta_av_co.o] Error 1
make: *** Waiting for unfinished jobs....
help appreciated

m0d said:
I get compile error:
Code:
external/bluetooth/bluedroid/main/../btif/co/bta_av_co.c: In function 'bta_av_audio_sink_getconfig':
external/bluetooth/bluedroid/main/../btif/co/bta_av_co.c:557:52: error: 'p_sink' undeclared (first use in this function)
if (bta_av_co_audio_sink_has_scmst(p_sink))
^
external/bluetooth/bluedroid/main/../btif/co/bta_av_co.c:557:52: note: each undeclared identifier is reported only once for each function it appears in
make: *** [out/target/product/aries/obj/SHARED_LIBRARIES/bluetooth.default_intermediates/../btif/co/bta_av_co.o] Error 1
make: *** Waiting for unfinished jobs....
help appreciated
Click to expand...
Click to collapse
just re sync your tree and fix is there

That inform you in: <insert the cpu thread number of your computer> ??? Please

I got a build to finish. I'll post the boot and system img for someone to try.. I'm not going to go through the trouble yet to make a flashable zip until we at least know it boots. I'll upload the images now

Posted the images: http://forum.xda-developers.com/z3-compact/development/img-aosp-5-0-boot-imgs-t2940499

So @NisseGurra flashed the build I made yesterday here is what he found to be broken:
no wifi, no network, some reboots, no usb storage, no external sd, no sound or camera
But its very snappy, looking forward to a functional aosp

Thank you for the guides,
I was able to compile AOSP for D5803 successfully.
A couple of issues,
First,
Has the Cherry-Pick for external/libnfc-nci/ that is provided in the guide been merged?
As I get the following error,
Code:
/external/libnfc-nci $ git cherry-pick 83cf98d0a5018e023eb9cc8b4e394957f9a6989f
fatal: bad object 83cf98d0a5018e023eb9cc8b4e394957f9a6989f
(Updated on blog to correspond with Shinano Issue.)
Second,
I get the following error when I try to output zipped package,
Code:
[B]No private recovery resources for TARGET_DEVICE aries
No recovery.fstab for TARGET_DEVICE aries[/B]
make: *** no rule to make target `otapackage'. stop.
Does this have anything to do with: TARGET_BOOTLOADER_BOARD_NAME := D5803
or that it is called aosp_d5803 (aosp_d5803.mk)
UPDATE: otatools seems to work, [" . build/envsetup.sh && time lunch aosp_d5803-userdebug && make otatools "].
But I can not find the output / output directory for package
Oh,
Is there supposed to be a userdata.img too?
Looking around a different sources mention it, however there is no userdata.img when I compiled it.
Thank you for your time

[GUIDE]A Noob Guide On Building Your Own Custom Kernel (ARM & ARM64 & MTK)

1. INTRODUCTION:​
This is a guide to build your own custom kernel. Although I'm still a "noob" at this,
I've struggled a lot to build one as all the guides which I followed were not very clear.
So I hope this will be clear enough and as noob friendly as possible!
You will learn how to:
- Build a kernel for arm and mediatek devices (arm64 coming soon)
- Add feature
- Basic use of git
Requirements:
- A computer running any distribution of linux 64 bit (Unbuntu, archlinux etc) as the Primary OS or a Virtual Machine (I used BBQ linux x64)
- Space on your HDD (On my Virtual Machine I set 40GB, set yours according to how many kernels you want to build) The minimum space for a kernel source (and its compiled code) is about 2 GB
- Minimal linux knowledge (Terminal, Commands etc)
- Your Brain
- And finally patience
2. SETTING UP YOUR BUILD ENVIRONMENT:​
- Open your terminal and type "sudo apt-get install -y build-essential kernel-package libncurses5-dev bzip2"
(The command can be different depending upon your linux distribution)
- Then type "gcc"
If "gcc" is already installed, you should see "gcc : fatal error : no input file"
- Then type "make"
If "make" is already installed, you should see "make: *** no target specified and no makefile found. stop."
(In your native language)
- Then type "git"
If "git" is already installed, you should see bunch of basic git commands
Now you're almost ready to start building your kernel!
Toolchains:
There are several types of toolchains (GCC, Linaro and few custom made ones)
Warning : Not every single device kernel will boot (or even compiles) with older or newer GCC
- For ARM:
We'll be using GCC 4.7 in this tutorial (link : https://android.googlesource.com/platform/prebuilts/gcc/linux-x86/arm/arm-eabi-4.7/ )
-Open terminal and type: "mkdir kernel"(Type the name you want, I used "kernel")
-Then type "cd kernel" (the name which you used above)
-Then type "git clone https://android.googlesource.com/platform/prebuilts/gcc/linux-x86/arm/arm-eabi-4.7"
-Wait till it finishes.
- For ARM 64:
For ARM 64 you need a 64 bit kernel compiler (there's "aarch64" in the name for telling that's a 64 bit compiler)
Exemple : https://releases.linaro.org/archive/13.07/components/toolchain/binaries/gcc-linaro-aarch64-linux-gnu-4.8-2013.07-1_linux.tar.xz
3.DOWNLOADING SOURCE FILES FOR YOUR DEVICE:​
Now you have to find a github that contains your kernel source.
Search on Google or XDA to find a kernel github repo for your device.
A kernel github looks like this: "https://github.com/atxoxx/android_kernel_samsung_msm8974/tree/xenomTW"
On the upper left side you can see branch: completed by a name
These are the different versions of the kernel/project (generally can be for testing, android version etc)
QUICK EXPLANATION OF FILES/FOLDERS:
- /arch/arm/configs : contains the config files for device (where you add option like new governors, features etc)
- /output/arch/arm/boot/ : Where zimage is stored (will explain that later)
- build.sh : Script to make the building much easier (will explain how it works later)
- /arm-cortex-linux-gnueabi-linaro_5.2-2015.11-2 : I put the toolchain in my kernel source making it easier to find (your kernel's toolchain name may be different)
If you don't have your kernel source yet, you need to download it.
Open terminal and make sure that you are in "kernel" folder (the one you previously created)
Then type in terminal : "git clone "URL of the github kernel" -b "name of the branch" "
For Example : "git clone https://github.com/atxoxx/android_kernel_samsung_msm8974 -b xenomTW"
Good! Now you have your kernel source!
4.BUILDING:​
For an easier way you can go to the location using your file explorer to : "/home/"name of your session"/kernel"
You'll see two folders (The Toolchain and The Kernel Source)
Go into your kernel source folder.
- For ARM:
Copy paste this:
#!/bin/bash
export ARCH=arm
export CROSS_COMPILE="path to your toolchain" (it have to end by something like "nameofarch-something-")
mkdir output
make -C $(pwd) O=output "name of defconfig and variant if needed"
make -j4 -C $(pwd) O=output
Click to expand...
Click to collapse
Explaination:
- #!/bin/bash: Tells the script to run in shell command
- export ARCH=arm: Defining which kernel architecture type it is (For example arm64 etc)
- export CROSS_COMPILE= : Locate where the toolchain is, it has to match the exact path to it and the dash ("-") in the end is really important ! (Almost everyone makes an error at this part!!!)
- mkdir output: Create a directory for storing compiled zimage
- make -C $(pwd) O=output : Defining defconfig for guiding kernel compilation (will explain later)
- make -j4 -C $(pwd) O=output: where the building start, "-j4" is how fast it'll compile, you have to setup this number according to your CPU !
- cp output/arch/arm/boot/Image $(pwd)/arch/arm/boot/zImage: This one is for moving image into the second path (thanks @Has.007 for this infromation)
Click to expand...
Click to collapse
Example :
#!/bin/bash
export ARCH=arm
export CROSS_COMPILE=$(pwd)/arm-cortex-linux-gnueabi-linaro_5.2-2015.11-2/bin/arm-cortex-linux-gnueabi-
mkdir output
make -C $(pwd) O=output msm8974_sec_defconfig VARIANT_DEFCONFIG=msm8974_sec_ks01_skt_defconfig SELINUX_DEFCONFIG=selinux_defconfig
make -j4 -C $(pwd) O=output
cp output/arch/arm/boot/Image $(pwd)/arch/arm/boot/zImage
Click to expand...
Click to collapse
- For ARM 64:
Copy paste this:
#!/bin/bash
export ARCH=arm64
export CROSS_COMPILE="path to your toolchain" (it have to end by something like "nameofarch-something-")
mkdir output
make -C $(pwd) O=output "name of defconfig and variant if needed"
make -j4 -C $(pwd) O=output
Click to expand...
Click to collapse
Explaination:
- #!/bin/bash: Tells the script to run in shell command
- export ARCH=arm64: Defining which kernel architecture type it is (For example arm64 etc)
- export CROSS_COMPILE= : Locate where the toolchain is, it has to match the exact path to it and the dash ("-") in the end is really important ! (Almost everyone makes an error at this part!!!)
- mkdir output: Create a directory for storing compiled zimage
- make -C $(pwd) O=output : Defining defconfig for guiding kernel compilation (will explain later)
- make -j4 -C $(pwd) O=output: where the building start, "-j4" is how fast it'll compile, you have to setup this number according to your CPU !
- cp output/arch/arm/boot/Image $(pwd)/arch/arm/boot/zImage: This one is for moving image into the second path (thanks @Has.007 for this infromation)
Click to expand...
Click to collapse
Example :
#!/bin/bash
export ARCH=arm64
export CROSS_COMPILE=$(pwd)/gcc-linaro-aarch64-linux-gnu-4.8-2013.07-1_linux/bin/aarch64-linux-gnu-
mkdir output
make -C $(pwd) O=output msm8974_sec_defconfig VARIANT_DEFCONFIG=msm8974_sec_ks01_skt_defconfig SELINUX_DEFCONFIG=selinux_defconfig
make -j4 -C $(pwd) O=output
cp output/arch/arm/boot/Image $(pwd)/arch/arm/boot/zImage
Click to expand...
Click to collapse
- For Mediatek:
Copy paste this:
#!/bin/bash
export CROSS_COMPILE="path to your toolchain" (it have to end by something like "nameofarch-something-")
export ARCH=arm ARCH_MTK_PLATFORM=
make "name of defconfig and variant if needed"
make -j4
Click to expand...
Click to collapse
Explaination:
- #!/bin/bash: Tells the script to run in shell command
- export CROSS_COMPILE= : Locate where the toolchain is, it has to match the exact path to it and the dash ("-") in the end is really important ! (Almost everyone makes an error at this part!!!)
- export ARCH=arm ARCH_MTK_PLATFORM=: Defining which kernel architecture type it is (For example arm64 etc) "ARCH_MTK_PLATFORM=" is for specifying which mediatek platform it is
- make _defconfig : Defining which defconfig to use (will explain later)
- make -j4: where the building starts, "-j4" is how fast it'll compile, you have to setup this number according to your CPU !
Click to expand...
Click to collapse
Example :
#!/bin/bash
export CROSS_COMPILE=$(pwd)/arm-eabi-4.8/bin/arm-eabi-
export ARCH=arm ARCH_MTK_PLATFORM=mt6580
make pixi4_4_8g1g_defconfig
make -j4
Click to expand...
Click to collapse
When these step are done make sure you are in kernel folder in terminal and type ". build.sh" (the dot at the beginning is essential don't forget it!)
If it compiles without any problems:
Wait till it finishes (it'll say something like "zimage is ready")
If you followed arm and arm64:
Then go to "/Output/arch/arm/boot/" to find your zimage.
Click to expand...
Click to collapse
If you followed mediatek:
Then go to "/arch/arm/boot/" to find your zimage.
Click to expand...
Click to collapse
Caution : Not all kernel build Zimage, it can build image or other compressed image
If in case you have any errors:
Check and see what it says, generally it'll tell you where the error is.
If the text is going too fast reduce the -j number as explained above.
For reference I compile with an AMD Phenom X4 3.4GHz,Samsung HDD and 8GB of RAM and it takes around 10min to build
It is recommanded to type in the terminal "make clean && mrproper" before compiling again​
5.MAKING THE KERNEL BOOT:​
You have 2 solutions here:
1) You can use @osm0sis anykernel method, which is explainded here: "https://forum.xda-developers.com/showthread.php?t=2670512" (A huge shoutout to him!)
OR
2) You can unpack the boot.img (from the same rom (CM, touchwizz,sense etc) and android version) and swap Zimage in it explained here : "https://forum.xda-developers.com/showthread.php?t=2073775" (thanks again to @osm0sis !)
Before flashing the kernel which you've made, backup your "stock" boot.img and Then flash your kernel and see if it boots!
6.HOW TO ADD FEATURE TO KERNEL WORK:​
Here starts the most interesting part! Now let's see how it works:
Basically you can add: Governors, IO Schedulers, Overclock the CPU & Many Tweaks...
Checkout the github section (Section 7) to see how to add them properly.
Here's an exemple for adding a governor (this one is called Intellimm) : https://github.com/gugu0das/android...mmit/7186ee60c171b06ea3a027e8383be392d3186bb1
The text in the blue box is the commit description (generally tells you about the changelog, general information and who originally made the commit)
The other text boxes tell you about where and which files have been modified/changed.
Everything in green indicates what has been added.
Everything in red indicates what has been deleted.
We can see in the first 2 text boxes that in "arch/arm/configs/" "msm8974_sec_defconfig" and "cm_msm8974_sec_defconfig" have been modified.
Between the lines 140 and 141 of this files this text has been added : "CONFIG_CPU_FREQ_GOV_INTELLIMM=y"
(This line is for enabling Intellimm when you're compiling your kernel)
Same technique applies to the other text boxes (what has been added and deleted and it's location)
Depending on the features you add, more or less files can be modified, added or deleted.
So to sum it up, a Commit let's you see all the changes which have been made and everything else!
7.GUIDE TO GITHUB:​
For this, I'll direct you over to this awsome guide made by @eagleeyetom !
8.GPL (IMPORTANT !!!):​
The Rules as they apply on XDA
As XDA has no legal power to uphold the GPL (and frankly we want to stay as far away from doing so as possible), we can’t force any of our users to abide by the GPL. However it is in XDA’s interests as well as the interests of our developer-base to ensure all GPL-derived materials hosted or linked on XDA comply fully with the GPL.
GPL-derived materials that do not come with the complete sources used to compile the GPL components are considered warez, and will be treated as such under forum rule 6 and 9.
If you use GPL components, but do not make any modifications to them whatsoever, you should provide a link to the original source of your GPL code.
Sources accompanying a release should be complete, and contain all the necessary source code for any modules, scripts or definition files. Complete sources will be defined as those which compile correctly and completely against the platform for which the software is distributed, and which contain any and all modifications made to the released General Public Licenced code. The source code supplied should be the exact version for which the source code is being requested, complete with all modifications.
EXAMPLE: Here’s a bit of code that could be used as a template to post your releases
<Kernel Or Author Name> <Kernel Nr>:
<Source>|<ReadMe>|<Credits>|<Other>
The Very Quick Summary of General Public License (GPL)
The text of the GPL Licence itself will be used to reach any final conclusion regarding any disputes over GPL Licenced materials. The above is a summary of what XDA expects of members using GPL code, and the complete text can be read at the GNU website.
The GPL states that anyone who modifies GPL licenced code is required to make available the sources used to compile it. This is to further improve and encourage collaborative work, as well as to ensure that the best code possible is produced, and to encourage peer-review of all work. This benefits both developers and end users in numerous ways, including:
Allowing anyone to verify the code they are trusting with their data, and its authenticity
Encouraging community collaboration to produce faster fixes and updates, and better code
Helping bring new developments from other devices and fields to your own, letting you benefit from new code that wouldn’t have been available without this sharing.
The GPL imparts great freedom for GPL end users. It ensures innovation is never stifled and no project is dependent upon any single developer.
It is in everyone’s interest for the GPL to be adhered to, as it gives us all better ROMs, better transparency, and a better atmosphere for developers to work together to make great code.
Click to expand...
Click to collapse
THANKS :​
- @ravish_919 : For testing and correcting this guide
- @karkasss : As my friend and support
- @gugu0das : For helping me a lot when I tried to build my kernel
- @eagleeyetom : For his awsome github guide
- @kirito9 : Huge thanks to him for providing mediatek guide !
- @F4uzan : Huge thanks to him for giving me a lot of useful information to fill this guide !
- @sunilpaulmathew : For providing an advanced method to rename your kernel !
- @RendyAK and @DroidThug : For correcting me about "#!/bin/bash"
- All the developers for their hard work !
- XDA and The Community!

TIPS AND TRICKS​
1. You can use a copy of a defconfig file with different setup :
Usage : Use a "stock" one and use another one with esperimental feature for testing without altering original defconfig
Exemple : copy "stock" defconfig and in copied one add a governor see if it compile and work
How to do : Create a second build.sh with modified defconfig name !
2. Change kernel name and version :
Simple method :​Edit this line "CONFIG_LOCALVERSION="-" after - in your defconfig
Exemple : CONFIG_LOCALVERSION="-XenomTW-3.2.6"
Advanced method :​1. Add the name after "EXTRAVERSION" (e.g: EXTRAVERSION = -XenomTW-3.2.6) in the 'Makefile' (line 4) which will be found in the root folder..
2. Edit the last two sections ("const char linux_banner[] =" and "const char linux_proc_banner[] =") of 'init/version.c".
e.g. Change this to
const char linux_banner[] =
"Linux version " UTS_RELEASE " (" LINUX_COMPILE_BY "@"
LINUX_COMPILE_HOST ") (" LINUX_COMPILER ") " UTS_VERSION "\n";
const char linux_proc_banner[] =
"%s version %s"
" (" LINUX_COMPILE_BY "@" LINUX_COMPILE_HOST ")"
" (" LINUX_COMPILER ") %s\n";
Click to expand...
Click to collapse
To something like this :
const char linux_banner[] =
"Linux version " UTS_RELEASE " (XenomTW)"
"(" LINUX_COMPILER ") " UTS_VERSION "\n";
const char linux_proc_banner[] =
"%s version %s"
" (XenomTW)"
" (" LINUX_COMPILER ") %s\n";
Click to expand...
Click to collapse
More to come...

Placeholder

Hey, nice work to see an updated guide. Do you think it will be possible to include Mediatek(MTK) support? I'll provide details through PM how I build my kernel and how MTK differs. I'm still a noob but have compiled enough to merge this guide.
You can probably add a page dedicated to MTK . Guides aren't my forte :").

kirito9 said:
Hey, nice work to see an updated guide. Do you think it will be possible to include Mediatek(MTK) support? I'll provide details through PM how I build my kernel and how MTK differs. I'm still a noob but have compiled enough to merge this guide.
You can probably add a page dedicated to MTK . Guides aren't my forte :").
Click to expand...
Click to collapse
Of course could be really cool !
I'll credit you etc
Also I'll try later to support arm64 too

3lambda said:
Of course could be really cool !
I'll credit you etc
Also I'll try later to support arm64 too
Click to expand...
Click to collapse
Nice, I'm a bit under the weather but you can make a placeholder for MTK and send what I know when I'm feeling better.

kirito9 said:
Nice, I'm a bit under the weather but you can make a placeholder for MTK and send what I know when I'm feeling better.
Click to expand...
Click to collapse
No problem take your time hope you'll feel better soon !

@3lambda, thumbs up :good::good: for this awesome guide.
It will be of much benefit to MTK Devs & maybe porters.
Up up bro.
Hoping to share little that I got to know when I started kernel development.
Hoping for the best.
Hoping this guide go far than our expectations

What people think about videos too ?
Like a series of guide
For example one for basic build
One for explaining how to implement a feature
One that explain common issue/bug etc ?

3lambda said:
What people think about videos too ?
Like a series of guide
For example one for basic build
One for explaining how to implement a feature
One that explain common issue/bug etc ?
Click to expand...
Click to collapse
it will be very useful
highly appreciated your contribution to the community thank you

Thank you for this helpful guide! Will be waiting for the "Adding Features" section! Quite the work you have done! :good:

3lambda said:
Of course could be really cool !
I'll credit you etc
Also I'll try later to support arm64 too
Click to expand...
Click to collapse
I got some Unwinding errors related to vmlinux.o and built-in.o
Device_Lenovo A6000
Kernel Sources_ https://github.com/varunhardgamer
repo name- kernel lenovo a6000
used toolchain_ arm-linux-androideabi-4.9 from android NDK
It would be grateful if you can help me
Thanks:good:

The Hard Gamer said:
I got some Unwinding errors related to vmlinux.o and built-in.o
Device_Lenovo A6000
Kernel Sources_ https://github.com/varunhardgamer
repo name- kernel lenovo a6000
used toolchain_ arm-linux-androideabi-4.9 from android NDK
It would be grateful if you can help me
Thanks:good:
Click to expand...
Click to collapse
What error have you ?
Also is your device arm64 ?
Envoyé de mon m8 en utilisant Tapatalk

3lambda said:
What error have you ?
Also is your device arm64 ?
Envoyé de mon m8 en utilisant Tapatalk
Click to expand...
Click to collapse
Unwinding could not be possible
recipe for vmlinux.o failed
device is arm
i guess its related to toolchain and gcc
Will report back after changing toolchain

The Hard Gamer said:
Unwinding could not be possible
recipe for vmlinux.o failed
device is arm
i guess its related to toolchain and gcc
Will report back after changing toolchain
Click to expand...
Click to collapse
Try to use​ GCC 4.7 (with the link i provided in op) instead of ndk
Envoyé de mon m8 en utilisant Tapatalk

3lambda said:
Try to use​ GCC 4.7 (with the link i provided in op) instead of ndk
Envoyé de mon m8 en utilisant Tapatalk
Click to expand...
Click to collapse
Ok, And Thanks for the guide man:good:

Code:
cp output/arch/arm/boot/Image $(pwd)/arch/arm/boot/zImage
This
Will copy the Image file from output folder to the arch/arm/boot folder so the users can find it directly from there.
cp is used to copy something from the command line.
mv is used to rename or move a file.
Anyways nice start & nice guide! :good:

Has.007 said:
This
Will copy the Image file from output folder to the arch/arm/boot folder so the users can find it directly from there.
cp is used to copy something from the command line.
mv is used to rename or move a file.
Anyways nice start & nice guide! :good:
Click to expand...
Click to collapse
Oh lol thanks
Will correct that in op

Linaro
I would appreciate it a ton if you could show us how to download and use a different toolchain (especially linaro) to compile the kernel. You did amazing work on this guide!

3lambda said:
2. Change kernel name and version :
Simply edit this line "CONFIG_LOCALVERSION="-" after - in your defconfig
Exemple : CONFIG_LOCALVERSION="-XenomTW-3.2.6"
Click to expand...
Click to collapse
Thanks for the awesome guide. I really wish to see a similar guide before few month so that I was able to save a lot of time .
Btw, few more tips for adding kernel name from my side...
1. Add the name after "EXTRAVERSION" (e.g: EXTRAVERSION = -XenomTW-3.2.6) in the 'Makefile' (line 4) which will be found in the root folder..
2. Edit the last two sections ("const char linux_banner[] =" and "const char linux_proc_banner[] =") of 'init/version.c".
e.g. Change this to
const char linux_banner[] =
"Linux version " UTS_RELEASE " (" LINUX_COMPILE_BY "@"
LINUX_COMPILE_HOST ") (" LINUX_COMPILER ") " UTS_VERSION "\n";
const char linux_proc_banner[] =
"%s version %s"
" (" LINUX_COMPILE_BY "@" LINUX_COMPILE_HOST ")"
" (" LINUX_COMPILER ") %s\n";
Click to expand...
Click to collapse
some thing like this
const char linux_banner[] =
"Linux version " UTS_RELEASE " (XenomTW)"
"(" LINUX_COMPILER ") " UTS_VERSION "\n";
const char linux_proc_banner[] =
"%s version %s"
" (XenomTW)"
" (" LINUX_COMPILER ") %s\n";;
Click to expand...
Click to collapse

Building stock kernel for Huawei Y5II CUN-L01

Hello guys, first of all thanks for all the hard work you do for us noobs
So to begin, i am trying to build a simple kernel without any modifications (for now) using source code provided by Huawei on their official website (You will need to select Y5II(CUN-L01) to get something downloadable).
consumer*huawei*com/en/support/phones/y5ii/
(New user external url block)
DOWNLOADS
Y5II Open Source(CUN-LXX,Android5.1,kernel,en) | 2016-04-14 | 140.76 MB
Click to expand...
Click to collapse
I've tried at least 5 different toolchains, I've followed many tutorials for building kernels including the mediatek specific guides but without luck. I would be grateful if someone could point me in the right direction and tell me if I am the one doing something wrong or is the source code broken ?
From many tutorials i've followed i've come to some usual steps i do:
1.
export ARCH=arm
export SUBARCH=arm
export CROSS_COMPILE=/home/mita/toolchain/bin/arm-eabi-
2.
I create a .config using predefined config
make hq6735_35u_b1n_l1_defconfig
3.
I try to do a make clean - i get an error
4.
I try to do a make mrproper - also an error
5.
I try just make and make -j4 - also errors
I can post the errors i am receiving, i have experience with android application development but i can't figure out a way to track down errors like i did in Eclipse and Android Studio.
CLEAN .
CLEAN arch/arm/kernel
"CONFIG_TRUSTONIC_TEE_SUPPORT = "
scripts/Makefile.clean:17: /home/mita/Kernel_Development/kernel-3.10/drivers/misc/mediatek/cpu_stress/Makefile: No such file or directory
make[4]: *** No rule to make target '/home/mita/Kernel_Development/kernel-3.10/drivers/misc/mediatek/cpu_stress/Makefile'. Stop.
scripts/Makefile.clean:94: recipe for target 'drivers/misc/mediatek/cpu_stress' failed
make[3]: *** [drivers/misc/mediatek/cpu_stress] Error 2
scripts/Makefile.clean:94: recipe for target 'drivers/misc/mediatek' failed
make[2]: *** [drivers/misc/mediatek] Error 2
scripts/Makefile.clean:94: recipe for target 'drivers/misc' failed
make[1]: *** [drivers/misc] Error 2
Makefile:1040: recipe for target '_clean_drivers' failed
make: *** [_clean_drivers] Error 2
Click to expand...
Click to collapse
Edit 1:
I forgot to mention i tried building on multiple OS’s: Ubuntu 32bit and 64bit, Lubuntu 32bit and 64bit, Kali Linux 64bit, and even on Raspberry Pi (i know it’s low spec but i had to try building on arm device just to rule it out) - Raspbian Stretch.
Thanks in advance for all the help

Bump
Before bumping i’ve read the rules “Once every 24h bumping”
I just not sure if there is a button to bump or is post like this required, sorry in advance if there is a bump button.

Once again a bump...
I would really be grateful if someone could tell me if source is broken or not so i can know my next steps.