Kernel Development

[subham soni]

Should I directly dive into device drivers , I started referring Linux
Device Drivers 3 for kernel 2.x. But seriously couldn't understand a
thing. I dream is to have my own linux distro that surpasses all the
limitations of present distros.

On 2/24/14, Pranay Srivastava <pranjas at gmail.com> wrote:
> On Mon, Feb 24, 2014 at 6:43 AM, freeman <freeman.zhang1992 at gmail.com>
> wrote:
>> Hi,
>>  2014-02-24 01:24, subham soni :
>>
>> Hello,
>>         I am a newbie to kernel development. I would like to develop my
>> own
>> kernel from scratch. From where should I start from? I have a good
>> experience of the commands in Linux (Ubuntu,Fedora,Debian,Slackware). I
>> googled out and I came to know that I should start from Device Drivers.
>> Now
>> which device driver should I code? Or should I master Shell Scripting?
>> For
>> developing a kernel (my aim here would be to increase the battery life,
>> since most laptops have only 1.30 hrs or 2.00 hrs in Linux OS) and 3.00
>> hrs
>> in Windows Environment. How should I start and from where?
>
> First learn about how compilation is done. How the program is actually
> executed. Learn about linker scripts, you'll need that black magic art
> that you'll definitely going to need.
>
> With this information you can at least understand the role BIOS play
> and how bootloader comes into play.
>
> Before your kernel coding starts i think you should at the very least
> be able to replicate a dummy bootloader, just to motivate yourself :P.
>
> Intel manuals (System programmer) would be your guide if you are doing
> this for PC.
>
> Last but not the least, test your code as a program first on PC. Make
> functions that are generic and could work with the arguments you pass
> to them. So with that said you can very easily create dynamic memory
> management code and test it as a module, then integrate it with
> kernel. You must always use parameters and don't assume anything. As
> your each module gets ready then integrate it with your kernel. You'll
> need to write some test programs as well so as to know that it
> actually works.
> Break it down into manageable pieces first before you start coding!.
>
> There would be a lot of code required before you can just print Hello
> World using your own printk or printf.
>
> Some resources you can google are osdev wiki, lots of info but please
> don't copy paste understand it first and then try to write by
> yourself. You'll learn alot by doing yourself.
>
>>
>>
>> _______________________________________________
>> Kernelnewbies mailing list
>> Kernelnewbies at kernelnewbies.org
>> http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
>>
>> I read some books about how to DIY an OS . Of course it's simple and
>> crude,
>> but it's a good start, I think.
>>
>> Hidemi Kawai, Homemade Operating System Within 30 Days
>> Yuan Yu, Operating System From Scratch (I don't know if there is an
>> English
>> edition. The project from this book is on GitHub:
>> https://github.com/yyu/osfs00)
>>
>> " There are many ways to learn OS, but I believe the best way is to learn
>> by
>> practice. There are many open source OS code, but the code bases are
>> huge.
>> You will get lost in the source code labyrinth.
>>
>> There are good books, Operating System: Design and Implementation by A.S.
>> Tanenbaum and A.S. Woodhull for example, but they don't teach you where
>> to
>> begin either.
> This is by far the best book if you are actually serious about it.
> Definitely nobody will teach you how it's actually done but it'll
> guide you the best. You'll have to answers on your own.
>
>>
>> That's why you should come here. If Tanenbaum's book is a reference, my
>> project series is a tutorial. Prof. Tanenbaum tells you what. I'll tell
>> you
>> how."
>>
>> Above are two funny books involving me into coding and learning about OS.
>> However, if you're serious, please just ignore :-P
>>
>> All the best,
>> Freeman Zhang
>>
>>
>>
>>
>> _______________________________________________
>> Kernelnewbies mailing list
>> Kernelnewbies at kernelnewbies.org
>> http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
>>
>
>
>     ---P.K.S
> --
> Pranay Srivastava
>