[Buildroot] [PATCH v2] Make external toolchain relocatable
Arnout Vandecappelle
arnout at mind.be
Sun Jul 15 11:16:40 UTC 2012
On 07/07/12 23:18, Samuel Martin wrote:
> Hi Arnout, all,
>
> 2012/6/30 Arnout Vandecappelle (Essensium/Mind)<arnout at mind.be>:
> > The external toolchain wrapper sets sysroot etc. to an absolute path.
> > By changing this to a relative path, it is possible to move the host
> > directory to a different location and still have a working build
> > system.
>
> I've just tested your patch on top of my branch, it seems working well
> but doesn't do all the job.
> You have probably focused on the wrapper code and forgot to update
> target of the symlinks of all other tools, pointing to the relative
> location of them instead of the absolute one.
I just sent a v3. Care to test it again?
> > This only works for a downloaded external toolchain. For a pre-installed
> > external toolchain, it is possible to move the host directory to a
> > different location, but not the external toolchain directory (it does work
> > if the external toolchain directory lies within the host directory). For
> > an internal or crosstool-ng toolchain, there is no wrapper so updating the
> > sysroot path should be done in a different way.
>
> For internal and crosstool-ng toolchains, I think if we want to ensure
> the tools are called with the correct sysroot argument, tehn we should
> use the wrapper too.
Good idea. But then it should be installed in a different place as well. But
on the other hand, we don't want to go and copy the sysroot directory for
internal/crosstool-NG toolchains... Bottom line: I'm not going to try it :-)
Regards,
Arnout
--
Arnout Vandecappelle arnout at mind be
Senior Embedded Software Architect +32-16-286540
Essensium/Mind http://www.mind.be
G.Geenslaan 9, 3001 Leuven, Belgium BE 872 984 063 RPR Leuven
LinkedIn profile: http://www.linkedin.com/in/arnoutvandecappelle
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