Re: [kbuild-devel] Converting the 2.5 kernel to kbuild 2.5

David Weinehall
2001-12-04T23:07:56Z

On Wed, Dec 05, 2001 at 10:00:32AM +1100, Keith Owens wrote:
> On Tue, 4 Dec 2001 18:21:15 +0000 (GMT),
> Alan Cox <alan@lxorguk.ukuu.org.uk> wrote:
> >> make bzlilo modules modules_install: it would be a simble
> >> make install: (and you configure with CML1/CML2 what install
> >> means).
> >
> >How does it handle that when install means different things on each box of
> >a set of them NFS sharing the kernel tree. This is a real world example
>
> I made kbuild 2.5 install very flexible to cater for cases like this.
> The answer depends on whether you want every compile to be the same
> with different install steps on the target machines or each compile is
> different.
>
> In the different compile case you have a single source tree (mounted
> read only if you like) and separate object trees for each compile run.
> The .config lives in the object directory so is machine local. The
> object trees can be NFS mounted or can use local disk on each build
> machine, as a bonus this avoids NFS writes and runs much faster.
>
> If you want a common compile on one machine followed by different
> installs on each machine then you have three choices.
>
> (1) make install with an install prefix path (say /var/tmp) will
> install the kernel, modules, System.map and .config in a holding
> directory on the build machine, the other machines can then copy
> the install data to wherever they need it. Whether the copy is
> done from the build machine to the target directories or on the
> target machine is an NFS implementation detail.
>
> (2) make installable (the default target) on the build machine then run
> make install with overrides on the target machines. All the
> install config variables are exposed for override on the install
> step.
>
> (3) make installable on the build machine with .config specifying an
> install script name. Then make install on each target system, the
> version of the install script is local to the target machine.
>
> If none of those suit your environment, let me know what you are trying
> to achieve and I will see about adding support to kbuild 2.5.

Would it be easy to add hooks for make-rpm and make-kpkg and alike,
as methods for make installable?

/David
_ _
// David Weinehall <tao@acc.umu.se> /> Northern lights wander \\
// Maintainer of the v2.0 kernel // Dance across the winter sky //
\> http://www.acc.umu.se/~tao/ </ Full colour fire </