Hey guys,
After two weeks of research and trying myself, I have decided I need someone to help this linux noobie out.
What I am looking for is to change 1 value which is in 1 file in the kernel source.
I've found which file it is. The problem is that with all the tutorials I've read and kernels I tried to compile,
they don't seem to be working with the source code I need to compile.
Details:
Source code I need to compile is for Samsung Tablet 2 10.1 - GT-P5110
Source code can be found @ samsung's open source site (can't post link here ) ... search for "GT-P5110_ICS_Opensource.zip"
Value I need to change is in the company layer of kernel.
I have been able to compile this kernel and get a zImage and some modules.
But I fear this isn't enough, I think I need a system.img?!
In any case, is there anyone who can help me out?
Do I need something else, patch/boot.img? Maybe I'm overlooking another easy solution?
I'll give you $30 on your Paypal account, same day!!
***Please note that $30 is only for the first working solution/person who can help, not for every solution :angel:***
Related
Hi all, I've been googling around but didn't find any useful information, so I'm asking just in case. Is there any guide to compile the full Android sources (kernel+userspace) for the Sapphire?
I found information for the Dream, and I guess it will be similar, but android's kernel source doesn't even have the sapphire files (though I have a copy elsewhere), but I don't know which libraries I might need to add by myself to the destination images, or something else I need to have in consideration...
Thanks in advance!
Hi there,
Now, I understand that there's a thread or two and a few web pages directed at compiling Android and its kernel from source.
However, the thread in question is months old, and didn't fully explain the process.
As for the web pages, they are mostly outdated and don't include enough information, not to mention desire specific instructions.
I think that, properly explained, building Android shouldn't be daunting, and everyone should be able to attempt it, if they wanted to.
So, I hope to compose a comprehensive guide on how to do just that.
The problem is that I myself have not been able to put enough instructions together to be able to complete a build. And there is no point digging up old threads.
So, If anyone who knows the ropes (that is, compiling android and a kernel from source) would be willing to lead the way, I'd happily turn it into an easy to understand guide.
Josh.
fllash said:
Hi there,
Now, I understand that there's a thread or two and a few web pages directed at compiling Android and its kernel from source.
However, the thread in question is months old, and didn't fully explain the process.
As for the web pages, they are mostly outdated and don't include enough information, not to mention desire specific instructions.
I think that, properly explained, building Android shouldn't be daunting, and everyone should be able to attempt it, if they wanted to.
So, I hope to compose a comprehensive guide on how to do just that.
The problem is that I myself have not been able to put enough instructions together to be able to complete a build. And there is no point digging up old threads.
So, If anyone who knows the ropes (that is, compiling android and a kernel from source) would be willing to lead the way, I'd happily turn it into an easy to understand guide.
Josh.
Click to expand...
Click to collapse
I followed this guide here and successfully compiled a modified HTC Kernel and I had very little Linux and Android experience.
Obviously instead of cloning the Cyanogen git, you just use the gits you wish to compile
Mekrel said:
I followed this guide here and successfully compiled a modified HTC Kernel and I had very little Linux and Android experience.
Obviously instead of cloning the Cyanogen git, you just use the gits you wish to compile
Click to expand...
Click to collapse
Thanks for the link
Though i don't fully understand the whole 'git' thing. Where do i find them? And how to i know which ones are the ones i want to use?
Josh
EDIT: Also, how do you 'edit' the kernel (i imagine it is somewhat like make menuconfig?). Also:
- Are these sense kernels?
- How do you add modules like OC and UV?
fllash said:
Thanks for the link
Though i don't fully understand the whole 'git' thing. Where do i find them? And how to i know which ones are the ones i want to use?
Josh
EDIT: Also, how do you 'edit' the kernel (i imagine it is somewhat like make menuconfig?). Also:
- Are these sense kernels?
- How do you add modules like OC and UV?
Click to expand...
Click to collapse
A git is a repository for source code, developers upload their source code there and can commit changes. The commit can allow descriptions of what was changed and also details the files changed.
The git system allows other people to add to the source if they have permission, or allows others to read the changes and download the source code.
Git links are usually posted by people who release software, as Android is GPL licensed so people have to release their source code if they're distributing their work.
Editing the kernel, take a look into the git and the commits and it will show you which files were changed and how exactly they were changed. That will give you the best understanding.
UV/OC is done by changing the acpu table in the architectures files and changing the minimum/maximum voltage figures in the board_bravo.c file.
The Cyanogen kernels are not Sense kernels no, it's a modified Google Kernel.
Thanks for the explanation. I followed the guide and built the rom, and it works (always a plus )
Now, the next thing is the kernel. How do I build a kernel with the CM tweaks integrated? I understand that all i would be doing is rebuilding the same one that is already installed, but im doing it to learn.
So, if i synced the GIT, does that include the CyanogenMOD kernel source? If it does, where is it and how do i rebuild it. If not, where do i find it?
Thanks,
Josh.
First post in the Dev section but this seemed to be the place to talk about kernel compilation and module development.
I have twice now, and am working on my third kernel compilation for the purposes of custom module building for the TF700 and the TF201.
The question I have has to do with the compilation process. Every time I have gone through this with the downloadable Asus Kernel zip I run in to several issues. Either missing references in code or portions that won't compile at all. Is this normal for kernel compilations? I would have thought that it would be fully compilable out of the box ( so to speak). Is it ASUS or just android/Linux in general that works out this way?
Is there a better way to do it? Should I use some generic source with the same version numbers? The current source is just not working at all. I am using an Ubuntu distro. Have the cross compile tools etc... but it just fails. I have already resolved two missing definition references and it just keeps on failing in new places
Hopefully this question doesn't offend developers. I have moved from WinPhone to here and want to better my understanding of how this should all work but need to start with some basics before I can make a meaningful contribution.
Thanks.
P.S... I looked and didn't find a "Compiling android kernels for dummies" book
hx4700 Killer said:
I looked and didn't find a "Compiling android kernels for dummies" book
Click to expand...
Click to collapse
"Dummies" doesn't write a book on kernel dev. Too wrapped up in telling people how to download iTunes.....
Use your "Google". And when you find it, Google XDA University.
There, you will find steps for setting a build environment and kernel and cross arm.
Understand, all kernels are different, but a good place to start. Plus, you learn how to use Google. An added bonus.
Oh... and... as an extra bonus, I will move this to Q & A, as this post has no development work attached. :silly:
MD
My question wasn't HOW to cross compile. I have done it.
My question is WHY are there so many errors that need correcting when compiling the ASUS downloadable kernels and if this is typical of the source from any device or just ASUS?
hx4700 Killer said:
The question I have has to do with the compilation process. Every time I have gone through this with the downloadable Asus Kernel zip I run in to several issues. Either missing references in code or portions that won't compile at all.
Click to expand...
Click to collapse
I had to fix exactly one pair of quotes vs. angle brackets somewhere in the RIL - get the patch pack from my kernel and apply the ril include fix. Then it should compile. If not, you are doing something wrong.
Can you post any links or names of everything ill need to get started on cross compiling a kernel for my tf700t I download the source and get my config.gz and am running a ubuntu distribution but if you could post a link to a tutorial that has detailed instructions that will work for the infinity that would be greatly appreciated thankyou
alexcass4 said:
Can you post any links or names of everything ill need to get started on cross compiling a kernel for my tf700t I download the source and get my config.gz and am running a ubuntu distribution but if you could post a link to a tutorial that has detailed instructions that will work for the infinity that would be greatly appreciated thankyou
Click to expand...
Click to collapse
Step 1: Get a suitable ARM toolchain. I can't help you here with Ubuntu because I'm using Gentoo and their crossdev tool (http://www.gentoo.org/proj/en/base/embedded/handbook/?part=1).
Step 2: Cross-compiling the kernel works just as for native kernels (make menuconfig, make), but you have to pass parameters to each make, e.g. make ARCH="arm" CROSS_COMPILE="arm-gentoo-linux-gnueabi-" (or whatever your toolchain is called)
Step 3: For the TF700-specific blob stuff I have written a detailed tutorial here: http://forum.xda-developers.com/showpost.php?p=36925180&postcount=4
I've been trying to find the best way to compile. I found a guide on youtube "http://www.youtube.com/watch?v=IV4jhXWc7AE", but it is a little outdated and I'm having some trouble following him. The kernel source that he has has a lot of folders and the only kernel source I've found for the N5 has 2 files. So I'm missing something in finding the kernel source it seems.
It would be awesome if I could get some help and maybe pointed in the right direction. The only problem is that I'm a auditory and kinesthetic learner.
I have Ubuntu installed and ready to go, I also have the lastest NDK, and I have the AnyKernel.zip.
Hello:
I'm trying to build a tun module for my cellphone android OS. I'm using this guide to learn what I'm doing since it is very complete and well written:
Code:
http://xda-university.com/as-a-developer/getting-started-building-a-kernel-from-source
The problems that I found are a few:
- I can't find the source code of Gingerbread for my Galaxy Fit GT-S5670L.
Here comes confusion one, is the kernel itself the source code that I'm looking for or I need the kernel's source code? I'm confuse.
My cellphone has this kernel: Linux localhost 2.6.35.7-perf-CL700532 #1 PREEMPT Wed Nov 2 01:11:19 kst 2011 armv61 GNU/Linux
So according to this:
Code:
http://forum.xda-developers.com/showthread.php?t=1808167
I've gone to all these pages looking for my kernel or kernel's source code which should be Gingerbread:
Code:
* http://opensource.samsung.com/reception/receptionSub.do?method=sub&sub=F&searchValue=gt-s56
* https://www.codeaurora.org/cgit/quic/le/kernel/samsung/
* https://android.googlesource.com/kernel/samsung/
I can't find the source code or kernel's source code for my Samsung Galaxy Fit GT-S5670L because I don't even know what I'm looking for exactly. Should I look for Gingerbread's kernel, or Galaxy Fit GT-S5670L Gingerbread's kernel?
At Samsung code source there isn't even my model of cellphone. (Thank you Samsung, because my phone is old doesn't mean that I will not need support)
Nevertheless I've downloaded the kernel/samsung from Android Google source with git command.
- Confusion two, nothing downloaded, I mean, the folder was created but it was empty.
.Where the 400 MB, more or less, went?!
I'm running Debian on my desktop computer.
- Confusion number three, I got the ADK and NDK tools, have no idea how to install them but I'll search and figure this out.
- Confusion four: the ADB, could someone point me to a good tutorial how to work with this.
- Confusion five: I know because I've bricked my phone several (SEVERAL) times that is not the same: Fit GT-S5670 than Fit GT-S5670L so I can't download or test or work with a kernel that it's not meant to be for my cellphone, that is if there is a kernel or kernel's source code for each model or variant of the Fit cellphones.
Please oh please help me!!
I have been trying to work with this for the last 3 weeks and surf the net for hours and I don't know what to do anymore. I have even contemplate the idea of buy a second-hand phone, though I really like mine.
PS. Sorry for my bad english.
Hope, reeeeeeally hope you guys can help me.
Hi,
There are many guides and tutorials here, and you can ask for help if you're still stuck,
> Chef Central > Android
Good luck!