Compiling Phone source code.

ryan77627 · Sep 15, 2016

Sorry if this isn't in the right place..

I've recently downloaded a virus on my rooted phone and it installed itself as a /system app and now my device is in a boot loop.

I think I can recover it if I can get a kdz file to flash. I have the source files but am unable to compile them for the life of me.

Can anyone try for me please? Sorry if this is asking too much. If so, can someone just point me on how to get the Android 5.0.1(!) Source code. I can't find a working copy. Thanks so much to any answers!

LG Source: https://drive.google.com/open?id=0B06ELEWLqgKAZnA4WlVKdGZtQ00

scary alien · Sep 16, 2016

I'm not an LG-savvy guy/expert, but I'm guessing you'd need more than recompiling something from source to resurrect your device (i.e., you'd likely need the kdz file that you mentioned that is specific to your device).

What specific device do you have?

(that may help others that read this decide if they have specific knowledge to help you out)

ryan77627 · Sep 16, 2016

My specific device is an LGL22C and to my knowledge compiling the source results in a kdz file

scary alien · Sep 16, 2016

I would think the LG site would discuss how to create the output from source and that there would be similarities to compiling AOSP (Android open source project) using a Linux (or comparable like Cygwin) platform.

Not sure of the details, I'm afraid

.

ryan77627 · Sep 17, 2016

Okay thanks, There ARE instructions in the source zip but i cant follow them to well. I would compile it myself but I can't find the Android 5.0.1 Source. I only found something that was like 5.6MB so I'm assuming thats the wrong files. Can anyone direct me on how to download the Android 5.0.1 Source?

scary alien · Sep 17, 2016

It's a bit easier to do on a Linux system, but here you go:

https://source.android.com/source/index.html
https://source.android.com/source/requirements.html
https://source.android.com/source/initializing.html
https://source.android.com/source/downloading.html
https://source.android.com/source/building.html

Downloads and builds will take several hours...

ryan77627 · Sep 18, 2016

Thank god I have Ubuntu then. Thanks everyone! I'll post the kdz file for all if I can compile it.

scary alien · Sep 19, 2016

I'm guessing you've seen this by now, but in the (very large, 1.3 GB download you linked in the first post), there's a README.txt file that also contains your build instructions (these match/mesh nicely with the links that I supplied, but you should defer to these as they also reference/link to the same source.android.com links I provided and give you your very necessary, device-specific information).

Cheers!

1. Android build
- Download original android source code (android_5.0.1) from http://source.android.com
- Untar opensource packages of LGL22C_L_Android.tar.gz into downloaded android source directory
a) tar -xvzf LGL22C_L_Android.tar.gz
- And, merge the source into the android source code
- Run following scripts to build android
a) source build/envsetup.sh
b) lunch
c) make
- When you compile the android source code, you have to add google original prebuilt source(toolchain) into the android directory.
- After build, you can find output at out/target/product/generic

2. Kernel Build
- Uncompress using following command at the android directory
tar xvzf LGL22C_L_kernel.tar.gz
- When you compile the kernel source code, you have to add google original prebuilt source(toolchain) into the android directory.
- Run following scripts to build kernel

- cd kernel
- export ARCH=arm
- export TARGET_PRODUCT=y50c_trf_us
- export CROSS_COMPILE=../prebuilts/gcc/linux-x86/arm/arm-eabi-4.8/bin/arm-eabi-
- make y50c_trf_us_defconfig
- make zImage

* "-j4" : The number, 4, is the number of multiple jobs to be invoked simultaneously.
* lz4demo : More information can be found at "https://code.google.com/p/lz4/"

- After build, you can find the build image(zImage) at arch/arm/boot

3. how to build chromium38_lge (vendor\lge\external\chromium38_lge\src),
please refer to README.txt at the folder mentioned above.

Compiling Phone source code.

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