Bugfix for newlib/libc/machine/m68k/memcpy.S misaligned memory access errors

Corinna Vinschen vinschen@redhat.com
Tue Jan 31 16:09:00 GMT 2012

Hi Joerg,

On Jan 24 11:11, Joerg Blattner wrote:
> Hello newlib
> While using newlib 1.19 and 1.20 successfully to have a current gcc 4.6.1 based GNU toolchain for a legacy MC68332 based CPU Board for which we still have to maintain code, I encountered misaligned address runtime exceptions in newlib/libc/machine/m68k/memcpy.S running on a MC68332 CPU (CPU32 core).
> While investigating this issue, I found the following discussion:
> http://old.nabble.com/-PATCH--more-problems-with-newlib-libc-machine-m68k-memcpy.S-td27515903.html
> The final version of the patch in the 2nd post from bottom has been proved to work in a productive environment.
> All the credits for the fix go to the people participating to the linked discussion.
> For convenience, I have attached a patch file containing the patch from the mentioned post above to this mail; it has to be applied to the current newlib 1.20 sources with the ignore-white-space option.
> I think it would be a good thing to have this fix in the official newlib sources.

probably, but I think we have to ask Josef first, if it's still ok to
include the patch into newlib.


Corinna Vinschen
Cygwin Project Co-Leader
Red Hat

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