linux-kernel - Re: make O=dir fails with current git

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20080331184247.GC4833@uranus.ravnborg.org>
Date:	Mon, 31 Mar 2008 20:42:47 +0200
From:	Sam Ravnborg <sam@...nborg.org>
To:	Stefan Hellermann <stefan@...2masters.de>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: make O=dir fails with current git

On Mon, Mar 31, 2008 at 08:26:49PM +0200, Stefan Hellermann wrote:
> Sam Ravnborg schrieb:
> > On Sat, Mar 29, 2008 at 07:19:21PM +0100, Stefan Hellermann wrote:
> >> Hi,
> >>
> >> I'm using "make O=machinename" for building different kernels from one tree. About 15 days
> >> ago it was okay, with current git it fails:
> >> $ make O=client1
> >> scripts/kconfig/conf -s arch/x86/Kconfig
> >>   Using /srv/devel/kernel as source for kernel
> >>   /srv/devel/kernel is not clean, please run 'make mrproper'
> >>   in the '/srv/devel/kernel' directory.
> >> make[1]: *** [prepare3] Error 1
> >> make: *** [sub-make] Error 2
> >>
> >> running "make mrproper" (without O=dir) doesn't help.
> >> I've not changed anything, I only made a "git-pull".
> >> Now I'm at home, tried "mkdir test; make O=test defconfig all" with current git-head, it
> >> doesn't work too.
> > 
> > I tried to reproduce this here without luck.
> > The tests performed by kbuild to dertermine if the
> > source directory is clean are very basic.
> > If the file .config exist or the directory
> > include/config exists then the source tree is considered clean.
> > Otherwise you get the above message.
> 
> Hi, damn, it's that easy!
> It was the .config file, I added (as root) a symlink to dir/.config to let some other
> application check if some Kernel-options are set, then the permissions of this symlink
> prevented make mrproper from removing it.
> 
> For what purpose is this check?
The O= build will use the wrong files if the source tree is not clean.
There are several special cases which goes wrong under the wrong circumstances
and therefore this consistency check.

> I can't point the other application to kerneldir/dir
> because it also greps in kerneldir/Makefile for the kernel-version.
They could use:
make kernelversion

and this could be used in the output directory too.

	Sam
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/