[ptxdist] kernel config question

[ptxdist] kernel config question

[Marc Michalewicz, Railtec Systems GmbH]

Hello,

I want to configure the kernel after it was unfolded and patched within 
the platform/build-target/linux-3.0.31
directory, so I did change to this dir and copied the kernelconfig from 
the configs-direcory of ptxdist as .config:

~/svn/ptxdist/ptxdist_CPU/platform/build-target/linux-3.0.31>cp 
../../../configs/kernelconfig ./.config

then I did a "make menuconfig", did *NOT* change anything but only saved 
the config before exiting
upon getting the question if I want to save the config.

=>as a result there is a completely different .config file. (For not 
bothering you with details, here is
just the linecount of the different lines in .config and the .config before:

diff .config ../../../configs/kernelconfig|wc -l
267
)

When I try to build the kernel with

"make -j2 HOSTCC=gcc ARCH=i386 CROSS_COMPILE=i686-unknown-linux-gnu- 
clean bzImage"

now there is a whole bunch of questions regarding some specific 
configurationissues, starting with
"
make -j2 HOSTCC=gcc ARCH=i386 CROSS_COMPILE=i686-unknown-linux-gnu- 
clean bzImage
   HOSTCC  scripts/kconfig/conf.o
   HOSTCC  scripts/kconfig/zconf.tab.o
   HOSTLD  scripts/kconfig/conf
scripts/kconfig/conf --silentoldconfig Kconfig
*
* Restart config...
*
*
* Enable the block layer
*
Enable the block layer (BLOCK) [Y/?] y
   Support for large (2TB+) block devices and files (LBDAF) [Y/n/?] (NEW)
"


So as I found out the first modification above COULD be explained that 
the kernelconfig and the actual
kernelversion might differ (but I did not check whether this is the case).

But I do absolutely not understand that I still got those questions when 
trying to crosscompile.
BTW fyi: if I do a  native compile "make bzImage", there are no questions.

Would be nice to understand this behavior, maybe somebody does and can 
explain to me.

Thanks an advance for any help or hint,

Marc








-- 
Railtec Systems GmbH
Marc Michalewicz
Sonnenbergstrasse 19
CH-6052 Hergiswil

Tel: +41 41 632 5533
Fax: +41 41 632 5539

www.railtec-systems.ch


-- 
ptxdist mailing list
ptxdist@pengutronix.de

Re: [ptxdist] kernel config question

[Marc Kleine-Budde]

[-- Attachment #1.1: Type: text/plain, Size: 814 bytes --]

On 05/15/2014 02:07 PM, Marc Michalewicz, Railtec Systems GmbH wrote:
> Hello,
> 
> I want to configure the kernel after it was unfolded and patched within
> the platform/build-target/linux-3.0.31
> directory, so I did change to this dir and copied the kernelconfig from
> the configs-direcory of ptxdist as .config:

    ptxdist menuconfig kernel

[...]

> When I try to build the kernel with
> 
> "make -j2 HOSTCC=gcc ARCH=i386 CROSS_COMPILE=i686-unknown-linux-gnu-
> clean bzImage"

    ptxdist compile kernel

Marc
-- 
Pengutronix e.K.                  | Marc Kleine-Budde           |
Industrial Linux Solutions        | Phone: +49-231-2826-924     |
Vertretung West/Dortmund          | Fax:   +49-5121-206917-5555 |
Amtsgericht Hildesheim, HRA 2686  | http://www.pengutronix.de   |


[-- Attachment #1.2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 242 bytes --]

[-- Attachment #2: Type: text/plain, Size: 48 bytes --]

-- 
ptxdist mailing list
ptxdist@pengutronix.de

Re: [ptxdist] kernel config question

[Juergen Borleis]

Hi Marc,

On Thursday 15 May 2014 14:07:51 Marc Michalewicz, Railtec Systems GmbH wrote:
> I want to configure the kernel after it was unfolded and patched within
> the platform/build-target/linux-3.0.31
> directory, so I did change to this dir and copied the kernelconfig from
> the configs-direcory of ptxdist as .config:
>
> ~/svn/ptxdist/ptxdist_CPU/platform/build-target/linux-3.0.31>cp
> ../../../configs/kernelconfig ./.config

Refer [1], section 5.4.1

Regards,
Juergen

[1] 
http://www.pengutronix.de/oselas/bsp/pengutronix/download/OSELAS.BSP-Pengutronix-Generic-arm-Quickstart.pdf

-- 
Pengutronix e.K.                              | Juergen Borleis             |
Linux Solutions for Science and Industry      | http://www.pengutronix.de/  |

-- 
ptxdist mailing list
ptxdist@pengutronix.de