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Recompile and overwrite applications in system/app

As an experiment I am trying to rebuild some standard android applications and replace them in system/app on the G1. I have been through all the steps to get the source code and build for the dream platform and have built the various .apk files of interest (e.g. AlarmClock.apk, Browser.apk etc)
To put the files on the device I delete the old .apk and .odex files and copy my newly built .apk file on to the device. However when I try to run the application it crashes with the following message.
The application Alarm Clock (process com.android.alarmclock) has stopped unexpectedly. Please try again.
I know that replacing the applications like this is possible, because the AutoRotating Browser build works fine when copies over in this manner.
I'm using JF1.31 (RC8)
My initial reaction was that I was not signing the applications properly but having read some posts I think the default built .apk should have the right key already in it.
Another theory I have is that perhaps the applications from the head of the source tree are not compatible with the RC8 (or RC30) Android OS releases. Can anyone tell me how to get the source tree which corresponds to this baseline, I've done some reading around but cannot figure it out. I presume I need to do a repo init -u git://android.git.kernel.org/platofrm/manifest.git -b BASELINE but I can't figure out what BASELINE should be.
Many thanks in advance for any help you can give me!!!

There are some branches in android sources:
master
cupcake
release-1.0
Apps from the first two will not run on default G1, you need to reinstall a whole system. I think by default, following google docs you'll get master. So you need to download a release-1.0 sources.
I may be wrong, but that is what I'm see from my experience.

Thanks for that, I'll get the 1.0 branch downloaded and have a go with that.
Cheers for your help!

I was also trying to recompile some of the built-in apps, specifically the browser, but I can't even get it to build. I get a bunch of import errors, stating that it can't find some of the android libraries, such as android.net.http.AndroidHttpClient, android.os.AsyncTask, etc. I've got the android.jar from the SDK in my build path, and it finds some of them, such as android.webkit.URLUtil.
Can anyone shed some light on what I need to do to get it to see the missing libraries? Thanks.

UndeadCretin said:
Thanks for that, I'll get the 1.0 branch downloaded and have a go with that.
Cheers for your help!
Click to expand...
Click to collapse
There are around a dozen build breaks in release-1.0... all of them are due to missing header #includes in various .c and .h files. So, when it doesn't work, don't give up. Fix the breaks and everything will build properly.

Are you resigning the .apk files? Cuz you have to do that for them to work correctly.

Koush said:
There are around a dozen build breaks in release-1.0... all of them are due to missing header #includes in various .c and .h files. So, when it doesn't work, don't give up. Fix the breaks and everything will build properly.
Click to expand...
Click to collapse
Yep I fixed these problems but I have now hit upon the following problem:
(unknown): error 17: Field android.hardware.SensorManager.LIGHT_NO_MOON has changed value from 0.0010f to 0.001f
******************************
You have tried to change the API from what has been previously released in
an SDK. Please fix the errors listed above.
******************************
I've been in and modified SensorManager back to 0.0010f and that let me build get further but I hit the same error again later in the build.
Given that release-1.0 should be a stable branch is it normal to get all these build issues?

Managed to fix the java issue by modifying public_api.xml. Then hit several more C++ problems which I fixed and finally I can build the lot!
Just tried building the AlarmClock application and running on the G1 and it works fine. Thanks everyone for your help!

>Managed to fix the java issue by modifying public_api.xml. Then hit several more C++ problems which I fixed and finally I can build the lot!
Can you write, what did you fix?

^ Agreed, let us know which files need modifying and what needs doing, i've been trying to get my release-1.0 build root working too!
Alternatively, UndeadCretin, could you build the firmware (release-1.0) with a modified framework-res i can send you?

Ok, I managed to compile it without any editing of xml.
Just added stdlib, string, vector headers to dozen of cpp/h.

worry said:
>Managed to fix the java issue by modifying public_api.xml. Then hit several more C++ problems which I fixed and finally I can build the lot!
Can you write, what did you fix?
Click to expand...
Click to collapse
To fix the java issue, I modified frameworks/base/core/java/android/hardware/SensorManager to change the LIGHT_NO_MOON value to 0.0010f (from 0.001f) and in out/target/common/obj/PACKAGING I modified the <field name="LIGHT_NO_MOON" to have value-"0.0010f">
After this there were several other c++ files which were missing relevant includes. I'm afraid I didn't keep a note of these so cannot provide much detail but mostly they were missing one of the following
#include "stdlib.h"
#include "string.h"
#include "stdio.h"
I think one file needed the following include
#include <string>
and there were a couple of other files that needed other includes. The best way to find these is to google for the function name that isn't building and you should be able to find the appropriate include (that's how I did it).
Hope that helps a bit!

were you able to repo sync after adding the local_manifest.xml?

ximonx said:
were you able to repo sync after adding the local_manifest.xml?
Click to expand...
Click to collapse
I did try that previously but it didn't work. I don't think the relevant files for the dream build are available in the release-1.0 branch. This wasn't a problem for me since I'm only interested in building the applications which work fine with the generic build.

I would like to do the same for the mms application. Could you give me the steps or a link how to do it? I mean do I need the whole sources from android platform to do it? How can I just compile one application?

Phlogiston said:
I would like to do the same for the mms application. Could you give me the steps or a link how to do it? I mean do I need the whole sources from android platform to do it? How can I just compile one application?
Click to expand...
Click to collapse
I downloaded the whole Android source (the release-1.0 branch) and compiled the lot. It may be possible to just build the individual application but I do not know how. It is not vital to build for the dream platform if you only care about the applications since they will work fine with the generic build.
So the basic steps to start are:
Get yourself a Linux or Mac OS platform (I use Ubuntu running in VMWare on my XP box).
Follow the instructions here: http://source.android.com/download but when you come to repo init add the flag -b release-1.0
Fix various build problems

When recompiling individual apps to replace system apps is there a way of just building a single application or does the entire thing need making?

ximonx said:
When recompiling individual apps to replace system apps is there a way of just building a single application or does the entire thing need making?
Click to expand...
Click to collapse
My experience is that you have to do the whole thing if you are building from source. There is one way I know of to get around this, which is to use baksmali and smali.

Just to be clear, making the entire thing = build from source root?

ximonx said:
Just to be clear, making the entire thing = build from source root?
Click to expand...
Click to collapse
If you are asking me--yes, that's what I mean. Make sure to build for dream-open as the target (it's generic by default).

[Q] Kernel source compiling for Xoom.

Hi I looked for sometime for answers but could not find anything relevant.
Looking to get the ftdi VCP drivers to install on Xoom. Which means I either have to compile a kernel or add them as a module. I can not for the life of me find the correct source tree.
I downloaded kernel 2.6.36.3 from google which matches my kernel version.
My kernel version on the tablet is 2.6.36.3-gb899258 .
When I cross compile the module and try to do an insmod its complaining about the magic version is different which leads me to believe that I have the wrong kernel.
Where can I get the right stock kernel?
If i can not find it there is another option to download the config.gz from the device and recompile another version of the kernel with native support for the ftdi drivers.. How do i just install just the kernel on the device? Is it a uImage bzImage and how do I just flash that?
cd
Thanks

edit:
scrap that ...
sorry, not really helpful in your case

I'm assuming you got your source from here? This is the link from the Android website:
git clone https://android.googlesource.com/kernel/tegra.git
If you decide to go the route of compiling another kernel source, the easiest way (and a good way to keep snapshots of various configs) would be to use Koush's AnyKernel to flash the kernel. I don't know anything about what you're trying to do but I hope that helps some.

Yep the code comes from there.....
I finally got it to work , I downloaded the stock kernel from google then when I make the modules I had to modify the Makefile to get it to match the kernel versions.
It seems to work for now...
Thanks for your help

[Q] How to compile ROM from Paulburton's ICS source??

Can anyone provide me some reference or guide on how to compile the ROM for tf101 from Paulburton's ICS source.

rajkumard said:
Can anyone provide me some reference or guide on how to compile the ROM for tf101 from Paulburton's ICS source.
Click to expand...
Click to collapse
Check his website for repo information. Beyond that, its no different than compiling any rom from source.
You should know that you probably will not get anything different than what he has released thus far, that is, unless you have coded your own changes.

Thanks, I will check the link. I believe he has few bug fixes which I need, that's the reason why I wanted to compile it.

rajkumard said:
Thanks, I will check the link. I believe he has few bug fixes which I need, that's the reason why I wanted to compile it.
Click to expand...
Click to collapse
Understood. I do know that Paul is neck deep with finals, and other school stuff, so there is no harm in running a compile yourself. I just wanted to make sure you knew what to expect. His repo sync is a tad different from other instructions, i.e. CyanogenMod...but once you get it all pulled down, its essentially the same steps for the compile portion.

Actually I am new to this. All these days I have been only using the ROM's and never tried to compile one. This is my first time and I appreciate your help. The link really helper, I have started syncing the repo, looks like it's going to be a while. I will post if I run into any issues.

rajkumard said:
Actually I am new to this. All these days I have been only using the ROM's and never tried to compile one. This is my first time and I appreciate your help. The link really helper, I have started syncing the repo, looks like it's going to be a while. I will post if I run into any issues.
Click to expand...
Click to collapse
I will tell you this...use ccache, its a huge time saver when you need to rebuild after making changes. Also...dedicated build system really is recommended, and without question, the more juice its got, the better.
Here are a couple of links...including a kernel specific one from CyanogenMod's wiki. I use both when I am bored and just want to compile something
Yet Another Tutorial on Building Android from Sources
Building Kernel from Source
Compiling ICS from Source
Hope these help!

http://source.android.com/source/initializing.html
http://wiki.cyanogenmod.com/wiki/Building_from_source
You will probably need these... be sure to cross reference the CM website against the google one. There are a few differences.

Thank you for the links. I got a spare machine and am thinking it is about time I did something productive with it.

Thanks for all the links, I was using one of the links that you have provided. It had the with step by step instruction. I followed it, most of the things went fine and some issues I was able to resolve. Now when try to build the rom using the make command I get the following error. I am doing the sync again to see if it resolves. I will try it out tomorrow. Meanwhile if any of you have any suggestions please let me know. btw I have tried the solution provided in one of the xda thread (repo sync -f) already and it did not resolve.
ERROR:
cts/apps/CtsVerifier/lib/colorchecker/Android.mk:22: external/stlport/libstlport.mk: No such file or directory
make: *** No rule to make target `external/stlport/libstlport.mk'. Stop.

rajkumard said:
Thanks for all the links, I was using one of the links that you have provided. It had the with step by step instruction. I followed it, most of the things went fine and some issues I was able to resolve. Now when try to build the rom using the make command I get the following error. I am doing the sync again to see if it resolves. I will try it out tomorrow. Meanwhile if any of you have any suggestions please let me know. btw I have tried the solution provided in one of the xda thread (repo sync -f) already and it did not resolve.
ERROR:
cts/apps/CtsVerifier/lib/colorchecker/Android.mk:22: external/stlport/libstlport.mk: No such file or directory
make: *** No rule to make target `external/stlport/libstlport.mk'. Stop.
Click to expand...
Click to collapse
The obvious question would be does the folder/file exist?
Code:
$ ls external/stlport/libstlport.mk
external/stlport/libstlport.mk
If it is...type 'env' at your command prompt and see what environment variables are set to see if the external folder should be seen.
Re-run 'source ./build/envsetup.sh', then 'lunch' and choose the tf101-userdebug (or what ever Paul uses now) option listed after running lunch.
See if that helps.

I'm repo sync'ing now- gosh, it takes longer to sync than it does to build. I still have to clone the kernel. I think it's been downloading for 2 hours!
I've actually never flashed this ROM, but that won't stop me from building it

Thanks gVibeR. The external folder exist but the 'stlport' folder does not exist. And I also did not see any option with 'tf101' in it when I run 'lunch'. I tried re-syncing the repo but i ran into out of space error. I did not know where to delete all the earlier repo downloads. This was a brand new Ubuntu installed with 25gig disk space. I will keep looking and let know if I had any luck.

rajkumard said:
Thanks gVibeR. The external folder exist but the 'stlport' folder does not exist. And I also did not see any option with 'tf101' in it when I run 'lunch'. I tried re-syncing the repo but i ran into out of space error. I did not know where to delete all the earlier repo downloads. This was a brand new Ubuntu installed with 25gig disk space. I will keep looking and let know if I had any luck.
Click to expand...
Click to collapse
I think you'll need more space than that - once you start building, the directory will swell to over 20gb. For comparison, andromadus(ICS) for the vision is 21g and CM7 (GB) is 18gb.
I'm still downloading, but spark source is at least 11gb and that doesn't include the kernel or the out directory, which will fill up after building.
I think you will need at least 25gb for the build plus whatever for ubuntu. If you are hard up for space, you can install one of the server versions of ubuntu, which doesn't include the GUI (~1.5gb).
The repo files are stored in .repo, which will be hidden. Use ls -a to see it, although I think it manages and discards old commits.

Thanks gee one, I have more than enough space, just thought 25gig should be fine. I will install Ubuntu again with more space and give it a try. Let me know how it goes for you, please post if you got any issues and resolved it.

Got kexec-mod, kexec-tools working, atags in progress - Should Also Work With DroidX

I realize people gave up slightly on the whole kexec thing over radio worries, but I now have the module compiling and inserting without error into the Droid2/DroidX gingerbread kernel. Next comes cross compiling the kexec-tools for userspace, to allow us to attempt inserting a different kernel.
To build, you'll need a compiled DroidX kernel from source, as well as the android NDK.
To build, make sure you have downloaded the DroidX GB kernel source and compiled it. There are guides everywhere on how to build Android kernels. Just make sure you use the proper cross compiler.
http://sourceforge.n....l.tgz/download
When you build, make sure to use
Code:
make mapphone_defconfig
Once the kernel is built, clone my repo and edit envsetup.sh to reflect the correct paths to your kernel source directory and the android NDK.
https://github.com/i...kexec-mod-d2-dx
Then, source it:
Code:
source envsetup.sh
Then, just run
Code:
make
and cross your fingers. You should then have a fresh kexec_load.ko file!
To see if it loads, you'll need to copy it to your sdcard, and then on the phone, using a console, do the following:
Code:
su (click allow)
insmod /sdcard/path/to/kexec_load.ko
If you don't get any errors, it inserted! Now, of course, to actually use it, we'd need the kexec-tools built, which I haven't gotten ready yet...but they're coming! To remove the module (no reason to leave it in memory for now):
Code:
rmmod kexec_load
Happy hacking, and help is always appreciated!

This looks great! If you need any help just ask

Thanks! I probably could actually use some. I'm looking at eternity project's git repos now, and am trying to figure out how they managed to get atags working, with the whole procfs thing...still scratching my head there.
I'm looking at eternity project's git repos now, and am trying to figure out how they managed to get atags working, with the whole procfs thing...still scratching my head there, though I do have an atags module working, except it doesn't do anything without atags in the procfs (http://lists.infradead.org/pipermail/kexec/2011-January/004795.html).
kexec-tools:
https://github.com/i...xec-tools-dx-d2
To build, see the README.
Then, copy the binaries from /build/sbin/* to your device, and the move them to the /system/bin directory, and chmod them 770 to make them executable.
mod-atags:
https://github.com/i...mod-atags-d2-dx
Now, if I/we can just get atags and procfs stuff taken care of, we'll be able to go to the next step. I already have atags compiling as a module, but it won't stay inserted because we have no atags in the procfs. Note I can't just trace through code like this and know what everything is doing, but I know enough to hack at it and be dangerous

I know this is kind of off topic, but would this help us people with Motorola Atrix 2? Does it use the same radio?

calebcoverdale said:
I know this is kind of off topic, but would this help us people with Motorola Atrix 2? Does it use the same radio?
Click to expand...
Click to collapse
No idea. I haven't even gotten the kernel to change yet, so I haven't gotten to mess with radio yet. The method itself should/would work though, but radio will require reverse engineering...perhaps find a similar phone with an open bootloader and disassemble and attempt to clone it's modules.

The latest change I made may or may not work, it was an attempt to remove atags from the kexec module based on an old patch I found, which added the functionality. This at leaset made kexec -l zImage work, but when I run kexec -e, the kexec binary complains about atags not being there...hrmmmph.
I may have to revert it (and will if we can get atags somehow) ...but if we can get the kexec bin to ignore /proc/atags or just find a way to rip them out of the running kernel, we'll be in business.
The commit: https://github.com/ilikenwf/kexec-mod-d2-dx/commit/12dffe0ea286be0fe9ab0303a5a35ed92be4ee2c
I'm also looking into 2ndboot.

I like where this is going! Keep working!
Sent from my DROID2 using xda premium

Okies, so, I emailed aliasxerog (original kexec-mod writer), and I hope he'll get back to me. Even though his twitter says he's a "former android developer," maybe he'll be willing to give me some hints so I can pick up where he left off.
I also got the froyo version of the module building properly based on his module, yet again, (all after SBF'ing my phone back down to motoblur froyo - yech!) but neither currently work... (note there's a gingerbread and a froyo branch on my repo): https://github.com/i...kexec-mod-d2-dx
The froyo one throws the following error, which stops me dead in the water:
Code:
Could not find a free area of memory of 3007dc bytes...
The gingerbread one loads the kernel into memory but won't execute it due to our not having atags.

We've moved our git repos to an organization for easier collaboration:
https://github.com/organizations/D2-DX-Customboot

links are imcomplete.
use URL lable pls.

Cross compiler version ?
hello,
Sorry but I am not able to use the sourceforge link that you provided to download kernel source .. Also please share what cross compiler version is to be used....
Thanks in advance.

The Theory of Everything (Building MTK from saucery) asop cm miui ubuntu

Welcome​
I have started this thread for the THEORETICAL development of the mt6732/mt6752 from source if such a thing happened to exist which of course it does not.
While compiling from source is pretty well documented :good: compiling MTK is not so well documented especially the mt6732/6752.
I have tried to keep this thread as ambiguous as possible and hopefully we will be left in peace to iron out any difficulties.
DO's:
I am a Total Noob myself to compiling from source but experienced enough to use the xda search box, Google and Youtube first before asking any questions. If your still confused after using the above then by all means ask here.
DON'T s:
If your a noob who should happen upon this thread then by all means read and learn but please respect the dev's by not asking random question without searching first :fingers-crossed:
SHARING:
Please only share things of a sensitive nature with recognised members who you know and via the PM. :good:
Lets just see how far we can push this Kernel
Recommended Reading:
[GUIDE]Building a Kernel from source{Mediatek}
Build Kernel MT6577 - Can't boot after build
How To Port CyanogenMod Android To Your Own Device
XDA:DevDB Information
k01q_e k01q_h, Kernel for all devices (see above for details)
Contributors
bigrammy
Kernel Special Features: Remains to be seen
Version Information
Status: Testing
Created 2015-02-25
Last Updated 2015-02-25

I am here, reporting for duty. If anyone wants an extra "potato" because he has too much "ketchup" for use feel free to ask me

Just to be clear
I am new to compiling from source in any shape or form
I believe the kernel to be not a problem and I know dev's are working on getting our phone on cm and maybe others :fingers-crossed:
But me being me I am very curious and would like to understand how we would go about doing what @varun.chitre15 managed to do for the mt6582 Here
I have the PC all setup for building now thanks to @carliv great guide Here and the cm and android tut's I also found this useful guide on youtube by Dave Bennet Here
Our device is not on the cm or google repo so how do we add it locally.
Do we need any special commands for mediatek
Could we use the mt6582 repo and substitute or mod the files
As you can see I have more questions than answers as normal :laugh:
I dont want to tread on any toes here or take over current developing but just want to learn as said in the OP there is a lack of mtk guides regarding this.
If I missed a clear mtk guide then please post the link to it. :good:

In short your looking at manifests. http://wiki.cyanogenmod.org/w/Doc:_Using_manifests
carliv (I think) posted the device config on github - link in your SPFlash thread somewhere.
Found it: https://github.com/carliv/device_elephone_p6000?files=1
Vendor files

I have compiled and flashed a kernel, I've been running it for 24+ hours with no obvious issues. It's honestly very easy to just get it to build if you don't try to make major changes.
I have (very lazily) tried to change a couple of things in the config to fix the known issues (OTG, compass): unfortunately I have no way to test the OTG function right now, while the compass did not magically start working. On the other hand, the notification light issue which is introduced by V8.4 is not strictly or exclusively kernel-dependent, since I am running V8.3 with my own kernel and the notification function is intact. That's all I can share at the moment.

xenonism said:
I have compiled and flashed a kernel, I've been running it for 24+ hours with no obvious issues. It's honestly very easy to just get it to build if you don't try to make major changes.
I have (very lazily) tried to change a couple of things in the config to fix the known issues (OTG, compass): unfortunately I have no way to test the OTG function right now, while the compass did not magically start working. On the other hand, the notification light issue which is introduced by V8.4 is not strictly or exclusively kernel-dependent, since I am running V8.3 with my own kernel and the notification function is intact. That's all I can share at the moment.
Click to expand...
Click to collapse
Can you switch on and post the /proc/config ?
Regarding the notification lights, I think v8.4 introduced the custom partition (might be wrong on that). Running grep -r "ro.notification.breath" /system/ the only result I got was services.odex (might have been settings.odex). I've bak(smali)ed it but couldn't see the difference between the two that would explain the change.

HypoTurtle said:
Can you switch on and post the /proc/config ?
Regarding the notification lights, I think v8.4 introduced the custom partition (might be wrong on that). Running grep -r "ro.notification.breath" /system/ the only result I got was services.odex (might have been settings.odex). I've bak(smali)ed it but couldn't see the difference between the two that would explain the change.
Click to expand...
Click to collapse
The config file is attached to the post, it's too big to paste it.
I have tried the new ROM which came out today, then flashed my kernel. I can't use either SIM card anymore. Flashed the boot.img that comes with the ROM - same. I guess I gotta go back to V8.3 for now.
The new ROM doesn't seem to be the same as the OTA: it reports as: Elephone_P6000_02_V8.0_20150206.
About the notification issues (which bothers me the most), I haven't had much time do to more experiments, but I was thinking this (which probably also led to my confusion*): there's a chance the functionality is not removed or shut down, at least in the intentions of the maker. After all, in V8.4 (and in the new ROM), when the phone is connected the light stays on, while notifications make it breath. While not a desirable behaviour (at least IMO), I wouldn't call it... a non-behaviour, so to say. So perhaps the functionality itself is intact but something is altering the way it works, for whatever reason. I also did some unpacking and grepping a few days ago, but I couldn't find anything useful.
* At some point I thought the issue was fixed because the light was breathing while connected to my PC, but it was probably because I had a notification to read.

xenonism said:
The config file is attached to the post, it's to big to paste it.
I have tried the new ROM which came out today, then flashed my kernel. I can't use either SIM card anymore. Flashed the boot.img that comes with the ROM - same. I guess I gotta go back to V8.3 for now.
The new ROM doesn't seem to be the same as the OTA: it reports as: Elephone_P6000_02_V8.0_20150206.
Click to expand...
Click to collapse
Lets not speculate too much - but perhaps there was a minor board change between the first and second preorders, notification could be a problem with granting notification access (in settings) - could this be a selinux issue? It would explain why things like Light manager work - as you grant them notification access.
For lost Imei - can you compare the custom partition to the one in the ota?

If anyone needs an easier way to grab the 'ketchup', my GitHub has it. Click on my blog link in my signature.

BachMinuetInG said:
If anyone needs an easier way to grab the 'ketchup', my GitHub has it. Click on my blog link in my signature.
Click to expand...
Click to collapse
Thanks bro,
Nice log
I was going to try use the sprout config as this is nice and clean Here when I have worked out how to do things that is.
My eyeballs are bleeding now with all this reading but from what I can see most of files are the same names so maybe we could just replace them with ours probably 98% ish
I did see one ROM some place for the mt6732/52 that had mt6582 references I just wish I could remember where I had seen it
Like I say I am a noob to this compiling and linux stuff so I maybe talking out of my ass :laugh:

bigrammy said:
Thanks bro,
Nice log
I was going to try use the sprout config as this is nice and clean Here when I have worked out how to do things that is.
My eyeballs are bleeding now with all this reading but from what I can see most of files are the same names so maybe we could just replace them with ours probably 98% ish
I did see one ROM some place for the mt6732/52 that had mt6582 references I just wish I could remember where I had seen it
Like I say I am a noob to this compiling and linux stuff so I maybe talking out of my ass :laugh:
Click to expand...
Click to collapse
I'm actually a noob too, and honestly I've only ever successfully built a fakeflash (temporary recovery) that didn't even work.

bigrammy said:
Thanks bro,
Nice log
I was going to try use the sprout config as this is nice and clean Here when I have worked out how to do things that is.
My eyeballs are bleeding now with all this reading but from what I can see most of files are the same names so maybe we could just replace them with ours probably 98% ish
I did see one ROM some place for the mt6732/52 that had mt6582 references I just wish I could remember where I had seen it
Like I say I am a noob to this compiling and linux stuff so I maybe talking out of my ass :laugh:
Click to expand...
Click to collapse
Can anyone actually make a guide noob friendly to build kernel from source? I got kernel with me locally zip file I want to build it please any help?

Tech N You said:
Can anyone actually make a guide noob friendly to build kernel from source? I got kernel with me locally zip file I want to build it please any help?
Click to expand...
Click to collapse
I think you can use the scripts in the root of the source code to build the kernel? make<something>.sh.
Make sure you're on Linux (Ubuntu preferred) and that you have all dependencies installed correctly. To execute the script, simply go to the Terminal, cd to the location, then type . make<something>.sh

Tech N You said:
Can anyone actually make a guide noob friendly to build kernel from source? I got kernel with me locally zip file I want to build it please any help?
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Have a look at the README.
Does make menuconfig work here?

These few simple instructions from the readme file enable you to build a working kernel (at least in a Linux environment):
Code:
How to Build
kernel
======
1. Get the prebuilt cross compiler from AOSP website:
$ git clone https://android.googlesource.com/platform/prebuilts/gcc/linux-x86/arm/arm-eabi-4.6
2. Add required cross compiler to PATH:
$ export PATH=/YOUR_TOOLCHAIN_PATH/arm-eabi-4.6/bin:$PATH
$ export CROSS_COMPILE=arm-eabi-
3. Then use the following commands to build the kernel:
$ ./makeMtk k01q_e new k
make menuconfig can be made to work, but you need to set some parameters and I can't look into it right now.
You previously asked something about the custom partition, I need some guidance there as I am not familiar with the IMEI issue.

xenonism said:
These few simple instructions from the readme file enable you to build a working kernel (at least in a Linux environment):
Code:
How to Build
kernel
======
1. Get the prebuilt cross compiler from AOSP website:
$ git clone https://android.googlesource.com/platform/prebuilts/gcc/linux-x86/arm/arm-eabi-4.6
2. Add required cross compiler to PATH:
$ export PATH=/YOUR_TOOLCHAIN_PATH/arm-eabi-4.6/bin:$PATH
$ export CROSS_COMPILE=arm-eabi-
3. Then use the following commands to build the kernel:
$ ./makeMtk k01q_e new k
make menuconfig can be made to work, but you need to set some parameters and I can't look into it right now.
You previously asked something about the custom partition, I need some guidance there as I am not familiar with the IMEI issue.
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Yea wasn't sure about menuconfig as mtk uses projectconfig rather than def_configs.
In the custom partition there are files like /custom/etc/firmware/modem.img etc. When messing with a Flyme port it was these files (and possible conflicts in /system) that caused an IMEI:nul.
FYI I opened the custom partitions on windows using an ext viewer after running the imgs through sgs2toext4.

Kernel building Mediatek
Tech N You said:
Can anyone actually make a guide noob friendly to build kernel from source? I got kernel with me locally zip file I want to build it please any help?
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Click to collapse
Not sure if you guys have seen or read this but it's a pretty comprehensive guide to building the mediatek kernel by @MasterAwesome and should really be compulsary for all kernel related things thread here http://forum.xda-developers.com/showthread.php?t=2754513
@HypoTurtle
Regarding the custom partition this is or could be a problem for us now and in the future and may require further investigation. The cm sprout branch has the modem.img in the (normal place /system/etc/firmware) but as you say ours is in the custom partition which is probably to protect it from bad /system flashes
Thing is I see no normal type link to it in the /system/etc/firmware so it must be linked some other way which may explain why all my port attempts failed as none of them used a custom partition (Asus_X002)
Maybe we will have to repartition the emmc to a standard config and alter the kernel (if the links are set via the kernel that is) for cm and other ports to work smoothly as I am unsure just how everything is linked up.
I have not had much experience with custom partitions so someone one know's of a good info source please link it. :good:
Hopefully Master @Santhosh M can figure out what's going on with the custom partition :fingers-crossed:

bigrammy said:
@HypoTurtle
Regarding the custom partition this is or could be a problem for us now and in the future and may require further investigation. The cm sprout branch has the modem.img in the (normal place /system/etc/firmware) but as you say ours is in the custom partition which is probably to protect it from bad /system flashes
Thing is I see no normal type link to it in the /system/etc/firmware so it must be linked some other way which may explain why all my port attempts failed as none of them used a custom partition (Asus_X002)
Click to expand...
Click to collapse
The partition is symlinked from .../by-name/custom (which is symlinked by the kernel from dev/block/mmcblk0p12) to /dev/customimg which is mouned after an e2fsck to /custom. /custom isn't linked to /system, it's just added to the global environment (init.environ.rc), will need to check on the environ, I'm on flyme and it has /custom/lib added to the library path (which doesn't exist).

HypoTurtle said:
The partition is symlinked from .../by-name/custom (which is symlinked by the kernel from dev/block/mmcblk0p12) to /dev/customimg which is mouned after an e2fsck to /custom. /custom isn't linked to /system, it's just added to the global environment (init.environ.rc), will need to check on the environ, I'm on flyme and it has /custom/lib added to the library path (which doesn't exist).
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Click to collapse
Haha thanks that explains a lot of weird things perfectly. :good:

What's the problem or what is the issue here.
Mediatek compiling guide ( by masterawesome ) that you have linked to is not actually practically this mtk kernel is done and is just way too complicatedly explained.
There is no defconfig stuff or pulling config.gz from phone in mtk. In this new source its just simple. Set up your toolchain path. Execute the makeMtk followed by the project no u want. Get zImage and patch it for mtk header and merge it with stock ramdisk. For this newer mtk chipsets repack has an extra stuff where u have to be careful of kernel command line parameters.
That's it the kernel stuff in mtk