Re: how to specify big-endian build for SH3 toolchain?

[Dan Kegel <dank at kegel dot com>]

Robert P. J. Day wrote:
>   note how calling the compiler uses just the typical -m3 and -m[lb]
> options, but calling the pre-processor adds in the options contained
> in the $DEFINES variable.  is this what might be missing from the
> current crosstool build?  (i'm still working my way thru some of the
> logic.)

Yes and no.  Trying to use a single toolchain for both
big and little endian means multilibbing, i.e. storing
.o's and .a's and .so's for both big and little endian
in the same toolchain, and crosstool doesn't try to do that.

It's a bit of a tradeoff: crosstool aims at simplicity
(since it was hard enough to get something *simple* working!).
Multilibbing adds convenience at the cost of simplicity.
- Dan

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