Re: [linux-sh:03092] About tool chain in http://kegel.com/crosstool/

[Dan Kegel <dank at kegel dot com>]

ZhouChang wrote:
>     I find a problem in the tool chain kegel.com/crosstool/  
> 
>     This problem was find in cross complation XFree86
> for SH4( my target board is KMC).
>... 
> sh4-unknown-linux-gnu/bin/ld: warning: type and size of dynamic symbol `__movstr_i4_even' are not defined
> the "test" program will cause segmentation fault.

You're the second person to post about that problem this month.
Thanks for the small test case.
I have reproduced the problem here with vanilla gcc-3.3.2 using your test case.

Oddly enough, the error message is clear and informative;
.size and .type directives are missing in the definition
of the function movstr_i4_even.  A patch to add them was
http://gcc.gnu.org/ml/gcc-patches/2002-11/msg01641.html
aka
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/config/sh/lib1funcs.asm.diff?r1=1.29.4.1&r2=1.29.4.2

I have verified that adding this patch to gcc-3.3.2
yields a toolchain that does not issue that warning
when linking your testcase.  I do not currently have
access to sh4 hardware, so I can't fully verify the
fix (anyone have an sh4 linux system they want to send
me? :-)  Please give it a try and let us know if it works.

A similar fix is already present in the 3.4 snapshots,
for what it's worth.

I'll try to include this patch in crosstool-0.26 soonish.
- Dan


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