Re: updated Cortex-M3 build script (again)

[Michael Abbott <michael at araneidae dot co dot uk>]

On Tue, 3 Mar 2009, Yann E. MORIN wrote:
> Cortex-M3 is a Thumb-only processor (if I'm not mistaken).

Thumb only?  You astonish me.  I'm pretty sure, for a start, that you 
can't do any interrupt handling in thumb processing -- I mean, the 
alternate registers are not accessible in this mode, if I'm not mistaken.

Well, I'm quite wrong: just downloaded the "ARM v7-M Architecture 
Application Level Reference Manual" and it says "ARMv7-M only executes 
Thumb instructions".  How intruiging.


By the way, thoroughly off topic -- anybody know how to identify, from sh 
script only, whether you're running on an old ABI glibc or new EABI 
install?  `uname` is clearly useless (it's nothing to do with the kernel), 
and digging about in /lib hasn't been very instructive yet -- the output 
of /lib/libc.so.6 although intriuging isn't terribly useful for this task. 
My fallback is going to have to be to run a sample program, I guess...

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