[LinuxBIOS] help from ubuntu and FC6 experts
segher at kernel.crashing.org
Thu Jan 25 01:39:13 CET 2007
> Maybe it would be an idea to create a very simple LinuxBIOS
> toolchain system where from a small SVN download, one can have a
> clean build environment using a pseudo cross-compile environment
> with a clean compiler per the 'latest' LinuxBIOS suggestion.
Building a cross-compilation toolchain on a fast machine takes
about 10 minutes, while building LinuxBIOS should take about
Also, you might *want* to use a "non-default" toolchain.
> I personally use either Buildroot or another really interesting
> environment called openwrt (which has a really neat build
> environment aimed at the low-cost broadcom chip-based router
> environment), but essentially with these environments, one does an
> SVN checkout which downloads a series of scripts and makefiles, and
> from that a make creates a completely new toolchain from the
> specified known sources.
You might want to check out Dan Kegel's excellent "crosstool".
> The really great thing about this is that one then has a KNOWN
> toolchain and all compiles are done with this KNOWN toolchain.
> Removes a whole lot of crap from the entire build environment, and,
> it generally works on ANY Linux platform - sure, there are some
> issues on OSX etc, but it does sure make a clean Linux build
I regularly build the Linux kernel on OSX -- all it takes are some
fixes to Linux itself, none toolchain related -- and certainly no
fixes to the toolchain itself.
> This may be a resolution to the screwed toolchains supplied in
> certain distros.
That much is true, but it's a really heavy-handed solution.
An option might be to include a script to build (and install)
a toolchain as an optional preparation step for building LB.
> I personally stopped using ANY flavour of redhat about 5 years ago
> when they released 7.1 with totally screwed beta compilers, which
> just broke everything.
"2.96". Yeah I still feel the pain.
> ever tried to tell RH that they introduced a bug in the compiler
> toolchain??? I think it would probably have fallen on deaf ears.
You should have tried though.
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