[coldfire-gnu-discuss] Coldfire Toolchain packed structure bug version 4.1.30 and newer

[Carlos O'Donell]

On Tue, Apr 17, 2007 at 02:06:55PM -0400, Malnar, Tom wrote:
>    We recently ugraded our tools to version 4.1.30 for the coldfire from 3.4.
>    Our processor is a MCF5475VR266.  
>    We noticed a new bug in the assembler code produced when dereferencing a
>    packed structure.   
> 
>    Does anyone have any suggestions on some things we could try?  Will this
>    issue be addressed in a future tool chain release?
     
Thank you for using Sourcery G++!

The workaround in this case is to use:
m68k-linux-gnu-gcc -mno-strict-align -g -Wall -c test.c

The "-mno-strict-align" tells the compiler to relax the normal m68k
alignment requirements. The Coldfire hardware (v2/3/4e) support
unaligned loads and store so this should be OK.

We will look into this issue. Thanks!

Cheers,
Carlos.
-- 
Carlos O'Donell
CodeSourcery
carlos at codesourcery.com
(650) 331-3385 x716