[Q&A] Kernel-Building for Huawei Ascent P6

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Hotfingers

Hotfingers

Senior Member
Jul 5, 2012
341
202
Roodepoort
Hi all,

I'd like to build the kernel, but I'm not winning.

I'm new to this kind of development, and am looking for some advice on how to get going..

My first thing is -After setting up Ubuntu, and downloading the source, I and the toolchain and doing sudo get The TheWorld... I can't get it to compile.
(Some error about an unterminated string constant when I try the make command..)

The other thing is how yo get the ramdisk out of boot.img

Thanks

Sent from my HUAWEI P6-U06 using XDA Free mobile app
 
surdu_petru

surdu_petru

Recognized Contributor
Feb 3, 2010
7,560
23,795
Paris
Hotfingers said:
Hi all,

I'd like to build the kernel, but I'm not winning.

I'm new to this kind of development, and am looking for some advice on how to get going..

My first thing is -After setting up Ubuntu, and downloading the source, I and the toolchain and doing sudo get The TheWorld... I can't get it to compile.
(Some error about an unterminated string constant when I try the make command..)

The other thing is how yo get the ramdisk out of boot.img

Thanks

Sent from my HUAWEI P6-U06 using XDA Free mobile app
Click to expand...
Click to collapse

Hi!

First , you shouldn't use sudo when you want to build kernel .

You can unpack repack boot.img with a tool by @dsixda

Good luck!

Edit :

If you can post here your build error, maybe I can help you more ...
 
Last edited:
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Hotfingers

Hotfingers

Senior Member
Jul 5, 2012
341
202
Roodepoort
trouble with toolchain

Hi all, me again.

Sorry that I'm slow, but I don't get too much time to play with android stuff.
I've got everything set up now (as described in the 1st post), but I get an error in the toolchain when I try to run

make clean && make mrproper
Click to expand...
Click to collapse

I have already run this bit of code to set all the variables correclty...
Code: 
export ARCH=arm
export SUBARCH=arm
export CROSS_COMPILE=/media/david/Android_Dev_Data/android/kernel/toolchains/arm-linux-androideabi-4.6/bin/arm-linux-androideabi-

export PATH=$PATH:/media/david/Android_Dev_Data/android/kernel/toolchains/arm-linux-androideabi-4.6/bin/arm-linux-androideabi-


So now I get this error below (something about an Unterminated quoted string in "arm-linux-androideabi-gcc"...
Code: 
/media/david/Android_Dev_Data/android/kernel/toolchains/arm-linux-androideabi-4.6/bin/arm-linux-androideabi-gcc: 4: /media/david/Android_Dev_Data/android/kernel/toolchains/arm-linux-androideabi-4.6/bin/arm-linux-androideabi-gcc: Syntax error: Unterminated quoted string
Building with KERNELRELEASE = 3.0.8
  CLEAN   .tmp_versions
/media/david/Android_Dev_Data/android/kernel/toolchains/arm-linux-androideabi-4.6/bin/arm-linux-androideabi-gcc: 4: /media/david/Android_Dev_Data/android/kernel/toolchains/arm-linux-androideabi-4.6/bin/arm-linux-androideabi-gcc: Syntax error: Unterminated quoted string
Building with KERNELRELEASE = 3.0.8
  CLEAN   scripts/basic
  CLEAN   scripts/kconfig
  CLEAN   scripts
  CLEAN   include/config include/generated arch/arm/include/generated
  CLEAN   .config .config.old include/linux/version.h

Does anyone have any idea what I've done wrong..?

Thanks,
Hotfingers
 
Hotfingers

Hotfingers

Senior Member
Jul 5, 2012
341
202
Roodepoort
Maaybe we can get a new kernel

Hi all,

Can some-one try applying a patch from https://www.kernel.org/pub/linux/kernel/v3.0/incr/ to our 3.0.8 kernel?
I wanted to do this, but I can't even get the kernel to compile.

My friend has a Samsung, and for his phone all kernels 3.0.x have the same ramdisk. So maybe we can even get 3.0.101 kernel by just applying patches to the 3.0.8 code that was released by Huawei..?
 
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  • 3
    raolleel
    raolleel
    Hello !


    Kernel-Build from source




    Because I was able to build the Kernel from Huawei's source(3.0.8) for Huawei Ascend P6 ,
    I want to open a Topic for Questions and Answers ! (like Surdu Petru did for his CM)

    Post Questions and Ideas about this topic here :

    Thanks !



    regards,
    raolleel
    View
    2
    SpotTech
    SpotTech
    raolleel said:
    To build the kernel you need the source from huawei:

    Chinese : http://download-c.huawei.com/download/downloadCenter?downloadId=16381&siteCode=cn (3.0.8) [B112]
    International: http://consumer.huawei.com/en/support/downloads/index.htm?id=7583(3.0.8) [sorry site is not awaliable (i think huawei has some problems with its website)]

    You also need the right toolchain : https://android.googlesource.com/platform/prebuilts/gcc/linux-x86/arm/arm-linux-androideabi-4.6 [B112]

    Little Tutorial to compile the kernel (Linux):

    extract your source-file and your toolchain (only the 4.6 toolchain works)

    open a terminal and cd into the source

    now type:

    now you have your zImage of the kernel
    Click to expand...
    Click to collapse

    International: http://download-c.huawei.com/download/downloadCenter?downloadId=17788&siteCode=worldwide
    View
    2
    jimbo77
    jimbo77
    It works... I finally decided to use fastboot flash boot and it booted. Also the procedure I sent you via PM works too... I'll send you the zip file I used, probably it's a more user friendly way to update a kernel.

    This is great, I'll soon start a kernel test as well. Been itching since I builded kernels for the 2011 Sony phones.

    Good work!

    Sent from my P6-U06 using Tapatalk
    View
    1
    raolleel
    raolleel
    To build the kernel you need the source from huawei:

    Chinese : http://download-c.huawei.com/download/downloadCenter?downloadId=16381&siteCode=cn (3.0.8) [B111]
    International: http://download-c.huawei.com/download/downloadCenter?downloadId=17788&siteCode=worldwide) (3.08) [B111]

    You also need the right toolchain : https://android.googlesource.com/platform/prebuilts/gcc/linux-x86/arm/arm-linux-androideabi-4.6

    Little Tutorial to compile the kernel (Linux):

    extract your source-file and your toolchain (only the 4.6 toolchain works)

    open a terminal and cd into the source

    now type:
    export ARCH=arm (select architecture of your phone)
    export SUBARCH=arm (select architecture of your phone)
    export CROSS_COMPILE=[path to your toolchain]/arm-linux-androideabi-4.6/prebuilt/linux-x86_64/bin/arm-linux-androideabi- (tell the Kernel, where your compiler is)
    make clean && make mrproper (to clean the source)
    make hisi_k3v2oem1_defconfig ARCH=arm (to load the default config of your phone)
    make menuconfig (configue the Kernel [dont change settings you don't know, or your kernel will not work)
    make -j[number of your cpu-cores+1] ARCH=arm (This will start the process .. will take some time)
    make ARCH=arm zImage
    Click to expand...
    Click to collapse

    now you have your zImage of the kernel
    View
    1
    raolleel
    raolleel
    BluntP6 said:
    So, can you build a custom kernel for this phone and we would get much better perfomance? Just asking.
    Click to expand...
    Click to collapse

    Much better .. not at this point ... but in the future ... maybee

    I just started to get an idear how this phone really is ^^

    At first, I was a little bit confused of the rom/kernel-history:

    Code: 
    B107 International 	4.2.2	-> 	3.0.8-0769-g8cca155
B108 International	4.2.2 	-> 	3.0.8-0772-g83e47c3 
B109SP02 International	4.2.2	-> 	3.0.8-0779-g33784a0 
B111 International	4.2.2	->	3.0.8-0780-g62cb956
B112 International	4.2.2	->	3.0.8-0780-g62cb956
B114 International	4.2.2	-> 	3.0.8-0781-g88bfdc2
B118 International	4.2.2	-> 	3.0.8-00788-g5d19ba2
B119 International	4.2.2	-> 	3.0.8-00794-g8845b56
B125 International	4.2.2	-> 	3.0.8-00795-g35bf84a
B109SP02 China 		4.2.2	-> ? 	 
B112SP01 China 		4.2.2	-> ?	
B115 China 	 	4.2.2	->	3.0.8-0802-g081004a
B116SP01 China  	4.2.2	-> 	3.0.8-00821-g6fd9b1d
B117SP01 China  	4.2.2	-> 	3.0.8-00829-gb6fffbf
B118 China 	 	4.2.2	-> 	3.0.8-00844

    Everyone talks about that there are many different kernels, and that we only have the source of B111, but ... for me it sounds like there is only the kernel 3.0.8 (like we have the source) ... the code after the - is only a code to tell, when the kernel was builded/who builded the kernel

    The Source is the Linux/Android-Kernel 3.0.8 (no subversion nothing added)

    So a Kernel build with this source should work on every Firmware with the 3.0.8-kernel.

    But we have another Problem.

    To get the zImage working, you need the Boot.img ...

    OK you can extract it via Huawei-Update-Extractor, but "abootimg" tells:

    Code: 
    B111/BOOT.img: no Android Magic Value
B111/BOOT.img: not a valid Android Boot Image.

B118China/09.boot.img: no Android Magic Value
B118China/09.boot.img: not a valid Android Boot Image.

B125/09.boot.img: no Android Magic Value
B125/09.boot.img: not a valid Android Boot Image.

    So at this point we can't put a zImage into boot.img because of wrong filesystem (I'll have a idear how to get out of this trouble, but I need some time)

    Also there is a question, can't we simply flash 07.fastboot.img (from B118CH) over the B125International-Rom (to get the "bootloader unlocked")
    We should be able to do this with dd, or am I wrong.
    Some people told that they are able to flash the B125 without loosing the "unlocked-BL", so B125 must be able to boot.

    Correct me if I'm wrong.

    I'm only trying to get kernel-developing started ^^
    View

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