Messages in this thread | | | Date | Sun, 19 Jan 2003 19:22:50 +0100 | From | Sam Ravnborg <> | Subject | Re: ANN: LKMB (Linux Kernel Module Builder) version 0.1.16 |
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On Sun, Jan 19, 2003 at 01:55:11PM +0100, Olaf Titz wrote: > > It is a bug that Documentation/modules.txt is so outdated that it > contains little useful information any more.
An updated version that at least describe how to build modules sanely outside the kernel tree is queued for inclusion[1].
> It is a bug that > Documentation/kbuild/makefiles.txt is at least a bit outdated.
A totally revised makefiles.txt is queued for inclusion[1].
> It is a bug that the build process outside of the kernel tree changes > files inside the kernel tree when MODVERSIONS is enabled. (At least > this was the case last time I checked.) This means the kernel tree > can't be mounted read-only, or at least you would have to do dirty > tricks with symlinks.
I have posted 2-3 version of a "separate src-tree" patch. But due to the existence of such weird things as oprofile and xfs it did not work in all cases. I symlinked all makefiles, but wanted to avoid catching the rest of the directories. I want my queued stuff applied before revisiting this though. Main usage has been to build kernels based on different configurations, not to mount src on a read-only media, that's sort of a side-effect.
> It is a bug that the current Makefile can't compile modules in an > object directory different from the source directory. This means the > module source tree can't be mounted read-only (again, without > resorting to symlinks).
make -C path/to/kernel/src SUBDIRS=$PWD modules So simple when you know the trick. That what I have documented in modules.txt.
[1] Most of what I have done has been submitted to lkml within the past month. It can be found at http://linux-sam.bkbits.net in the kbuild repository, where it is queued for inclusion.
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