Re: kernel image path

2018-05-07 Thread valdis . kletnieks 
On Tue, 08 May 2018 03:12:31 +0530, Sumit Kumar said:
> My local kernel repository size has inflated to around 14 GB after
> building kernel a few times. I was wondering if it keeps previous images
> as well which could be taking a lot of disk space.

Not sure what you mean by "local kernel repository".  The kernel build directory
should use pretty much the same amount of disk each time you build it (unless
you're using O= pointing at a different place each time, in which case it's 
doing
exactly what you told it to do...)

Note that if you install a lot of kernels, you'll end up with lots of
subdirectories in /lib/modules if you don't clear them out.  Particularly a
problem if you build a kernel a week (like I do) and use a "distro" config that
builds almost everything (I don't do that).



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Re: where to send patch

2018-05-07 Thread Alex Arvelaez 
On May 7, 2018 5:23 PM, Sumit Kumar  wrote:
>
>     Hi,
>
> When I use get_maintainer.pl script it give a list of names / addresses.
>
>1. Should I send to only one of them

Send it to all of them, otherwise it's more likely it'll be lost in the noise.

> 2. Should I put the first address in "To" field and the rest all in "CC" ?

I believe you put the contributors in the To field and CC the relevant mailing 
list(s). There's a contribution guide you can read that explains this and more. 
(I'm paraphrasing so don't quote me)

Regards,

Alex
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Re: kernel image path

2018-05-07 Thread Sumit Kumar 

Hi Valdis,

Thanks for the quick reply.

I wanted to find out where the kernel images are stored to check their 
size.


My local kernel repository size has inflated to around 14 GB after 
building kernel a few times. I was wondering if it keeps previous images 
as well which could be taking a lot of disk space. By looking into arch 
folder it seems kernel image takes around 8 MB. Max. space is used by 
drivers folder - I guess its the object files from all the drivers. I am 
again left wondering if building kernel drivers multiple times keeps the 
older driver object or replaces it with newer one.


I am little bit short on disk space right and hence needed to clear few 
things out.


--

Thanks and Regards,

Sumit


On Tuesday 08 May 2018 01:13 AM, valdis.kletni...@vt.edu wrote:

On Tue, 08 May 2018 00:45:25 +0530, Sumit Kumar said:


Sorry, there is a typo : I meant make -jX in a kernel sandbox.

The same place it puts it if you don't use -jX.  The exact answer will depend on
what sort of sandbox you're using, and how exactly you're setting things up,
and what system(s) you're building for.

For example: on x86_64, by default the kernel ends up in arch/x86/boot/bzImage.

If you have your build tree at /usr/src/linux, that means it ends up in 
/usr/src/linux/arch/x86/boot/bzImage.

If you're building in a directory called '/source/kernel' inside a chroot based 
at '/containers/build-kernel',
it will end up in /containers/build-kernel/source/kernel/arch/x86/boot/bzImage 
(as viewed from
outside the chroot).

Being more specific will require knowing what exactly you're trying to do



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where to send patch

2018-05-07 Thread Sumit Kumar 

    Hi,

When I use get_maintainer.pl script it give a list of names / addresses.

1. Should I send to only one of them ?

2. Should I put the first address in "To" field and the rest all in "CC" ?

--

Thanks and Regards,

Sumit


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Re: Compiler lacks asm go-to support

2018-05-07 Thread valdis . kletnieks 
On Tue, 08 May 2018 01:11:51 +0530, Bhanusree Pola said:

> I have cloned kernel from
> git clone -b staging-testing 
> git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
> while configuring the following error is shown
>
> arch/x86/Makefile:184: *** Compiler lacks asm-goto support..  Stop.

You're using an ancient gcc (older than gcc 4.5) or some other compiler that
doesn't support goto a C label inside an asm() statement.


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Re: Compiler lacks asm go-to support

2018-05-07 Thread Justin Skists 
On Tue, May 08, 2018 at 01:11:51AM +0530, Bhanusree Pola wrote:
> Hi all,
> 
> I have cloned kernel from 
> git clone -b staging-testing 
> git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
> while configuring the following error is shown
> 
> arch/x86/Makefile:184: *** Compiler lacks asm-goto support..  Stop.
> 
> I have tried all possible debugging with the help of internet,but could
> not solve the problem.
> 
> Please help me in this regard

What compiler version are you using?

Justin

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Re: kernel image path

2018-05-07 Thread valdis . kletnieks 
On Tue, 08 May 2018 00:45:25 +0530, Sumit Kumar said:

> Sorry, there is a typo : I meant make -jX in a kernel sandbox.

The same place it puts it if you don't use -jX.  The exact answer will depend on
what sort of sandbox you're using, and how exactly you're setting things up,
and what system(s) you're building for.

For example: on x86_64, by default the kernel ends up in arch/x86/boot/bzImage.

If you have your build tree at /usr/src/linux, that means it ends up in 
/usr/src/linux/arch/x86/boot/bzImage.

If you're building in a directory called '/source/kernel' inside a chroot based 
at '/containers/build-kernel',
it will end up in /containers/build-kernel/source/kernel/arch/x86/boot/bzImage 
(as viewed from
outside the chroot).

Being more specific will require knowing what exactly you're trying to do


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Compiler lacks asm go-to support

2018-05-07 Thread Bhanusree Pola 
Hi all,

I have cloned kernel from 
git clone -b staging-testing 
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
while configuring the following error is shown

arch/x86/Makefile:184: *** Compiler lacks asm-goto support..  Stop.

I have tried all possible debugging with the help of internet,but could
not solve the problem.

Please help me in this regard

Thanks & regards,
Bhanusree Pola

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Re: kernel image path

2018-05-07 Thread Sumit Kumar 
Sorry, there is a typo : I meant make -jX in a kernel sandbox.

On 8 May 2018 at 00:39, Sumit Kumar  wrote:

> Hi,
> When I do sb make in a Kernel sand box where is the resultant image stored
> ?
>
> --
> Thanks and Regards,
> Sumit
>
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