* kbuild: problems with separate src/obj trees
@ 2006-01-23 13:15 Gerd Hoffmann
2006-01-23 15:15 ` Kalin KOZHUHAROV
0 siblings, 1 reply; 3+ messages in thread
From: Gerd Hoffmann @ 2006-01-23 13:15 UTC (permalink / raw)
To: linux kernel mailing list
Hi,
Trapped into two problems with 2.6.16-rc1:
(1) Building kernels with the source tree on a r/o filesystem
doesn't work any more because kbuild tries to create
$(srctree)/.kernelrelease and fails to do so.
(2) UML kernels don't build at all with a separate obj tree:
master-xen kraxel ~/objtree/vanilla-2.6.16-pre-um# make ARCH=um
gmake -C /home/kraxel/scratch/vanilla-2.6.16-pre
O=/home/kraxel/objtree/vanilla-2.6.16-pre-um
SYMLINK arch/um/include/kern_constants.h
ln: creating symbolic link `arch/um/include/kern_constants.h' to
`../../../include/asm-um/asm-offsets.h': No such file or directory
gmake[2]: *** [arch/um/include/kern_constants.h] Error 1
gmake[1]: *** [cdbuilddir] Error 2
gmake: *** [all] Error 2
Ideas/Patches anyone?
Gerd
--
Gerd 'just married' Hoffmann <kraxel@suse.de>
I'm the hacker formerly known as Gerd Knorr.
http://www.suse.de/~kraxel/just-married.jpeg
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: kbuild: problems with separate src/obj trees
2006-01-23 13:15 kbuild: problems with separate src/obj trees Gerd Hoffmann
@ 2006-01-23 15:15 ` Kalin KOZHUHAROV
2006-01-23 16:46 ` Gerd Hoffmann
0 siblings, 1 reply; 3+ messages in thread
From: Kalin KOZHUHAROV @ 2006-01-23 15:15 UTC (permalink / raw)
To: linux-kernel
Gerd Hoffmann wrote:
> Hi,
>
> Trapped into two problems with 2.6.16-rc1:
>
> (1) Building kernels with the source tree on a r/o filesystem
> doesn't work any more because kbuild tries to create
> $(srctree)/.kernelrelease and fails to do so.
>
> (2) UML kernels don't build at all with a separate obj tree:
>
> master-xen kraxel ~/objtree/vanilla-2.6.16-pre-um# make ARCH=um
> gmake -C /home/kraxel/scratch/vanilla-2.6.16-pre
> O=/home/kraxel/objtree/vanilla-2.6.16-pre-um
> SYMLINK arch/um/include/kern_constants.h
> ln: creating symbolic link `arch/um/include/kern_constants.h' to
> `../../../include/asm-um/asm-offsets.h': No such file or directory
> gmake[2]: *** [arch/um/include/kern_constants.h] Error 1
> gmake[1]: *** [cdbuilddir] Error 2
> gmake: *** [all] Error 2
>
> Ideas/Patches anyone?
There was a recen thread about these... let me see:
Look for "[PATCH 2/2] kbuild: fix make -jN with multiple targets with make
O=..." from Sam Ravnborg on 2006-01-16
[It is pushed out at:
git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild.git]
Kalin.
--
|[ ~~~~~~~~~~~~~~~~~~~~~~ ]|
+-> http://ThinRope.net/ <-+
|[ ______________________ ]|
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: kbuild: problems with separate src/obj trees
2006-01-23 15:15 ` Kalin KOZHUHAROV
@ 2006-01-23 16:46 ` Gerd Hoffmann
0 siblings, 0 replies; 3+ messages in thread
From: Gerd Hoffmann @ 2006-01-23 16:46 UTC (permalink / raw)
To: Kalin KOZHUHAROV; +Cc: linux-kernel
>> master-xen kraxel ~/objtree/vanilla-2.6.16-pre-um# make ARCH=um
>> gmake -C /home/kraxel/scratch/vanilla-2.6.16-pre
>> O=/home/kraxel/objtree/vanilla-2.6.16-pre-um
>> SYMLINK arch/um/include/kern_constants.h
>> ln: creating symbolic link `arch/um/include/kern_constants.h' to
>> `../../../include/asm-um/asm-offsets.h': No such file or directory
>> gmake[2]: *** [arch/um/include/kern_constants.h] Error 1
>> gmake[1]: *** [cdbuilddir] Error 2
>> gmake: *** [all] Error 2
> There was a recen thread about these... let me see:
> Look for "[PATCH 2/2] kbuild: fix make -jN with multiple targets with make
> O=..." from Sam Ravnborg on 2006-01-16
Ok, the .kernelrelease issue is fixed meanwhile, I still see the UML
build failure though. That triggers also without "make -j", so it is
probably a different bug ...
cheers,
Gerd
--
Gerd 'just married' Hoffmann <kraxel@suse.de>
I'm the hacker formerly known as Gerd Knorr.
http://www.suse.de/~kraxel/just-married.jpeg
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2006-01-23 13:15 kbuild: problems with separate src/obj trees Gerd Hoffmann
2006-01-23 15:15 ` Kalin KOZHUHAROV
2006-01-23 16:46 ` Gerd Hoffmann
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