From: Blaisorblade <blaisorblade_spam@yahoo.it>
To: user-mode-linux-devel@lists.sourceforge.net
Cc: Bodo Stroesser <bstroesser@fujitsu-siemens.com>,
Jeff Dike <jdike@addtoit.com>
Subject: Re: [uml-devel] Re: Problems in make
Date: Tue, 23 Nov 2004 19:04:51 +0100 [thread overview]
Message-ID: <200411231904.51431.blaisorblade_spam@yahoo.it> (raw)
In-Reply-To: <41A354F1.7070907@fujitsu-siemens.com>
On Tuesday 23 November 2004 16:19, Bodo Stroesser wrote:
> Blaisorblade wrote:
> > On Monday 22 November 2004 19:59, Bodo Stroesser wrote:
> >>If arch/um/kernel/tt/include/mode-tt.h is changed, make doesn't compile
> >>tracer.c, the resulting kernel is inconsistent and crashes!
> >
> > This is true for any dependency of files listed in USER_OBJS, which is
> > broken. This problem is known and is pending fixing (and fixing requires
> > designing a clean and Kbuild-supported replacement of USER_OBJS). I fixed
> > it some time ago, around 2.6.1, but the fix was not integrated because it
> > was too invasive.
> >
> > So: use always make clean ARCH=um before rebuilding (this even holds for
> > dependencies on CONFIG_*).
> >
> > If that slows you down too much, then install ccache (I'm not explaining
> > it here because there is nothing special on ccache with kernel
> > compilation and because there is plenty of tutorials onto the net).
> > Bye
> As a quick solution to guarantee a correct result of the build, would it be
> possible to remove all USER_OBJS, when starting to build?
This is not a so bad idea, however if I interrupt a build with Ctrl-C and
restart it without changes, it shouldn't clean all USER_OBJS.
It is not also a one-liner (can be dumbly implemented easily, but some
changes).
What about adding a target like "rebuildclean" (a better name is welcome)?
However, until I don't have the time to work on this, use the solution I
suggested above.
> Or, if this isn't
> enough, even remove all objects in the arch/um subtree?
We don't need to be this aggressive.
--
Paolo Giarrusso, aka Blaisorblade
Linux registered user n. 292729
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next prev parent reply other threads:[~2004-11-23 18:02 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-11-22 18:59 [uml-devel] Problems in make Bodo Stroesser
2004-11-22 22:01 ` [uml-devel] " Blaisorblade
2004-11-23 15:19 ` Bodo Stroesser
2004-11-23 18:04 ` Blaisorblade [this message]
2004-11-24 12:06 ` Bodo Stroesser
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