Re: [WAY OT]: need a windows-based PPC cross-compiler

[Daniel Kegel <dank at kegel dot com>]

Robert P. J. Day wrote:
> On Wed, 20 Apr 2005, Alex Holland wrote:
>
>
> > PS: The GCC cross tools build instructions from Redhat that I posted
> > are about 4 years old. I have not tried them recently, but they
> > should still work. However, there likely more up to date
> > instructions elsewhere. I remember www.billgatliff.com as a good
> > site to start learning about using GCC for cross development.
>
>
> actually, i used crosstool-0.31, picked the "ppc 860" demo script, and
> let it go.  a couple hours later, i had a toolchain under cygwin that
> compiled my (2.4.22) kernel source tree.  haven't tested that it (the
> kernel) actually works yet, but the fact that the chain built and the
> kernel compiled gives me a warm, fuzzy feeling.

Glad to hear the toolchain came up easily for you.  Good luck
with the kernel.

BTW there are known issues building the kernel on cygwin
and other case-insensitive systems:
1. .s and .S source file suffices mean different things; .S needs preprocessing, .s doesn't.
   This is fixable, but might be a bit painful.
2. netfilter has files named foo_BLAH.h and foo_blah.h that represent
   different states in their state machines.
   See https://lists.netfilter.org/pipermail/netfilter-devel/2004-October/017145.html
   They refuse to change this.
   If you use netfilter in your kernel, you will run into trouble
   with cygwin as a dev environment.

I hear that Microsoft's Services for Unix can be installed in
such a way that it offers case-sensitive filenames.
SFU is a competitor to cygwin (and in fact is now offered
as a zero-cost download, thanks to that competition).
Haven't tried crosstool on it yet, though.
It's at
http://www.microsoft.com/windows/sfu/
if you want to be a guinea pig.

(It may have an old c compiler, in which case you may need
to build your own gcc-3.2.3 before you can build
anything recent with crosstool.)
- Dan

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