[gentoo-soc] Application for Google Summer of Code 2018 - Mishal Roy.

[gentoo-soc] Application for Google Summer of Code 2018 - Mishal Roy.

[Mishal Roy]

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Hi,


I have drafted a proposal for Google Summer of Code 2018 and  attached it
in the form of PDF.

Please go through it and give me necessary feedback.



Thanks and Regards,
Mishal Roy.

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Re: [gentoo-soc] Application for Google Summer of Code 2018 - Mishal Roy.

[Benda Xu]

Hi Mishal,

Overall, I wish you could be more ambitious on what you will achieve in
3 months.  The present scope of 1 kernel ebuild is too limited.

The manuscript structure is well organized.  Below are some minor
comments.

Mishal Roy <roymishal210@gmail.com> writes:

> I have drafted a proposal for Google Summer of Code 2018 and attached
> it in the form of PDF.
>
> Please go through it and give me necessary feedback.

> Android Kernel Update using Gentoo on Android.

> Overview :

> The computing power of Android devices have started rivaling laptops
> and desktop computers.  Hence compile time and build time on Android
> devices have improved.

> Gentoo Prefix on Android devices will bring easy kernel updates.

> This project aims at updating kernel on an Android device by compiling
> and installing it with the help of Gentoo Prefix.

> Objective :

> This project will eliminate the need of a secondary device like
> computer for compiling Android kernels.

> User without having kernel building experience can easily get the
> kernel of his Android device built and installed by running an ebuild
> script.

> Deliverables :

> 2018.02.25 64 bit tarball from [1] will be used .  Android Device to
> be used in the project is Xiaomi Redmi Note 4.

> In this project an ebuild script will be developed which will do the
> following

> Download kernel source code of the device from [2], boot image
> pack/unpack tools from [3] and boot image from [4].

> Compile Kernel and its modules.

> Unpack the boot image using code from [3] and install kernel modules
> into ramdisk.

> Create a boot image[3] with the recently compiled kernel and edited
> ramdisk.  Install the boot image by writing it to
> /dev/block/mmcblk0p21.

> Timeline :

> Before Phase 1 Evaluation Deadline kernel source code will be
> downloaded and compiled using GCC Compiler of Gentoo Android
> Prefix. Built kernel will be tested on the Android device.  Thereafter
> an ebuild will be written that downloads kernel source code , tools
> and boot image 

Are you going to download the Xiaomi boot images by the ebuild?

> as well as compiles kernel and its modules.

> Before Phase 2 Evaluation Deadline ebuild script will be extended by
> adding code to unpack boot image, install kernel modules into the
> ramdisk and create a new boot image with recently compiled kernel and
> edited ramdisk.

I wish we could eliminate the concept of boot image for daily use of
Android, just as normal computers.

> efore Phase 3 Evaluation Deadline a backup of the boot image present
> in /dev/block/mmcblk0p21 will be created. The ebuild will be competed
> by adding final code to install the new boot image.  Finally, the
> ebuild will be executed.

> Resources :
> 1. https://wiki.gentoo.org/wiki/Project:Android/tarball
> 2.https://github.com/MiCode/Xiaomi_Kernel_OpenSource/tree/mido-m-oss
> 3.https://github.com/osm0sis/mkbootimg
> 4.https://androidfilebox.com/app/stock-miui-recovery-image-for-redmi-note-4-snapdragon/

> About Me :

> I am Mishal Roy, a third year Electronics and Telecommunication
> engineering student of Atharva College of Engineering ,Mumbai ,
> India. I have keen interest in Operating Systems. I am familiar with
> Opearating Systems like Ubuntu, Gentoo and Android.

Please specify to what extent you are familiar with Ubuntu, Gentoo and
Android.  

For example, how many years have you been using it?  Where did you
install Ubuntu and Gentoo?  What do you use them for?  Have you made any
contribution to the community?  Do you have links to your previous
Android ROM development projects?

> I am well versed in programming languages like C, C++, Java, x86
> Assembly and Bash.

Nice.  Do you have code snippets publicly available?

> I am very focused, organised and love to take challenges.

Cheers,
Benda

Re: [gentoo-soc] Application for Google Summer of Code 2018 - Mishal Roy.

[Mishal Roy]

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Hi,

Yes I will download the Xiaomi boot image by ebuild.

I had proposed this small project so that it can be successfully completed
within the time frame of three months.
Eliminating the concept of boot image is feasible.
If you recommend, I would like to extend my proposal by adding it.
Aboot the application bootloader of Redmi Note 4 reads boot image and loads
kernel+ramdisk into RAM.
On the other hand, bootloader on computer reads kernel and ramdisk ,and
loads those into RAM.
We can make Aboot function like a computer bootloader by editing its source
code [1].
However we will require Xiaomi's permission  to allow us install the newly
built Aboot because Aboot gets checked by SBL(Secondary boot loader) [2].

I recently got familiar with basics of Gentoo.
I have been using Ubuntu since 2 years.
I have Ubuntu on my desktop computer and laptop.
I use Ubuntu for compiling ASM, C and MATLAB codes.
I also use it for running Guitarix,Rakarrack ( virtual guitar amplifiers)
and Audacity sound recorder.
Through Ubuntu I got to know about initramfs as well as list of services
that are started by sysvinit and upstart.
i.e. udev, pulseaudio , x-sever, lightdm, dbus, cron etc.
I have experimented with these sevices by starting and stopping.
I have not contributed to any community or solved bugs so far.
I have Dell Venue 7 3740 which is an Intel powered Android device.This
device is my main device for Android development.
https://opensource.dell.com/releases/Venue_7_3740_
Merrifield/developer-edition/A195/

1. https://www.tldp.org/HOWTO/SRM-HOWTO/aboot.html
2. https://forum.xda-developers.com/android/general/info-
android-device-partitions-basic-t3586565/amp/

On Thu, Mar 22, 2018 at 11:44 AM, Benda Xu <heroxbd@gentoo.org> wrote:

> Hi Mishal,
>
> Overall, I wish you could be more ambitious on what you will achieve in
> 3 months.  The present scope of 1 kernel ebuild is too limited.
>
> The manuscript structure is well organized.  Below are some minor
> comments.
>
> Mishal Roy <roymishal210@gmail.com> writes:
>
> > I have drafted a proposal for Google Summer of Code 2018 and attached
> > it in the form of PDF.
> >
> > Please go through it and give me necessary feedback.
>
> > Android Kernel Update using Gentoo on Android.
>
> > Overview :
>
> > The computing power of Android devices have started rivaling laptops
> > and desktop computers.  Hence compile time and build time on Android
> > devices have improved.
>
> > Gentoo Prefix on Android devices will bring easy kernel updates.
>
> > This project aims at updating kernel on an Android device by compiling
> > and installing it with the help of Gentoo Prefix.
>
> > Objective :
>
> > This project will eliminate the need of a secondary device like
> > computer for compiling Android kernels.
>
> > User without having kernel building experience can easily get the
> > kernel of his Android device built and installed by running an ebuild
> > script.
>
> > Deliverables :
>
> > 2018.02.25 64 bit tarball from [1] will be used .  Android Device to
> > be used in the project is Xiaomi Redmi Note 4.
>
> > In this project an ebuild script will be developed which will do the
> > following
>
> > Download kernel source code of the device from [2], boot image
> > pack/unpack tools from [3] and boot image from [4].
>
> > Compile Kernel and its modules.
>
> > Unpack the boot image using code from [3] and install kernel modules
> > into ramdisk.
>
> > Create a boot image[3] with the recently compiled kernel and edited
> > ramdisk.  Install the boot image by writing it to
> > /dev/block/mmcblk0p21.
>
> > Timeline :
>
> > Before Phase 1 Evaluation Deadline kernel source code will be
> > downloaded and compiled using GCC Compiler of Gentoo Android
> > Prefix. Built kernel will be tested on the Android device.  Thereafter
> > an ebuild will be written that downloads kernel source code , tools
> > and boot image
>
> Are you going to download the Xiaomi boot images by the ebuild?
>
> > as well as compiles kernel and its modules.
>
> > Before Phase 2 Evaluation Deadline ebuild script will be extended by
> > adding code to unpack boot image, install kernel modules into the
> > ramdisk and create a new boot image with recently compiled kernel and
> > edited ramdisk.
>
> I wish we could eliminate the concept of boot image for daily use of
> Android, just as normal computers.
>
> > efore Phase 3 Evaluation Deadline a backup of the boot image present
> > in /dev/block/mmcblk0p21 will be created. The ebuild will be competed
> > by adding final code to install the new boot image.  Finally, the
> > ebuild will be executed.
>
> > Resources :
> > 1. https://wiki.gentoo.org/wiki/Project:Android/tarball
> > 2.https://github.com/MiCode/Xiaomi_Kernel_OpenSource/tree/mido-m-oss
> > 3.https://github.com/osm0sis/mkbootimg
> > 4.https://androidfilebox.com/app/stock-miui-recovery-image-
> for-redmi-note-4-snapdragon/
>
> > About Me :
>
> > I am Mishal Roy, a third year Electronics and Telecommunication
> > engineering student of Atharva College of Engineering ,Mumbai ,
> > India. I have keen interest in Operating Systems. I am familiar with
> > Opearating Systems like Ubuntu, Gentoo and Android.
>
> Please specify to what extent you are familiar with Ubuntu, Gentoo and
> Android.
>
> For example, how many years have you been using it?  Where did you
> install Ubuntu and Gentoo?  What do you use them for?  Have you made any
> contribution to the community?  Do you have links to your previous
> Android ROM development projects?
>
> > I am well versed in programming languages like C, C++, Java, x86
> > Assembly and Bash.
>
> Nice.  Do you have code snippets publicly available?
>
> > I am very focused, organised and love to take challenges.
>
> Cheers,
> Benda
>
>

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