Re: [linuxsh-dev] GNU CVS gcc -- fixup for -m4-nofpu

[Bryan R. <br...@ix...>]

"M. R. Brown" wrote:

> Hmm, my assumption (I could be wrong) was that SH4_BIT|SH3E_BIT weren't in
> the the -m4-nofpu flag because all FP code generation is supposed to be
> disabled.  The question I had asked before was, why is this flag necessary
> in the kernel (e.g. what does it matter if FP code generation is active or
> not), but I hadn't gotten a response (I thought it was explained before
> though).  I guess what I'm saying is I think leaving those *_BITs off is
> an internal gcc hack, so that it does sh4 insn scheduling, etc. but
> doesn't do hardware floating-point, so that should probably stay off
> (unless it's breaking something for you).

Hmmm... Well, even with the patches I posted previously, I'm having
trouble building the Linux kernel (2.4.1 out of LinuxSH CVS)... the
problem is with our old friends __sdivsi3_i4, __udivsi3_i4, __udivsi3
and __sdivsi3. They are preventing linkage because they're undefined.
Any idea how to fix this problem?

I'm going to try not setting that SH4 bit, and hope that fixes it...

Regards,

Bryan


-- 
Bryan Rittmeyer
mailto:br...@ix...
Ixia Communications
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