zlib-1.2.5 => firefox crash

Bruce Dubbs bruce.dubbs at gmail.com
Thu Jun 17 11:32:34 PDT 2010


x2164 at lycos.com wrote:
> 
>>>>      I think someone suggested using something like "-mstack-align"
>>>>      on the gcc-4.5.0 command to cause the normally expected behavior.
>>>>
>>> Thanks, I hadn't connected it with gcc-4.5.0. Googling on that led
>>> to a very interesting thread here:
>>> http://mail.madler.net/pipermail/zlib-devel_madler.net/2010-May/002277.html
>>>
>>> It seems zlib-1.2.5 needs the cflag -mstackrealign (not tested it yet)
>>>
>> Indeed it works. Before I compiled zlib I used this sed on configure:
>>
>> sed -i 's/--O/--mstackrealign -O/' configure
>>
>> and hey presto - firefox does not segfault. At least, not yet. Adding 
>> -mstackrealign to zlib's CFLAGS seems to fix the problem. Thanks for the 
>> help.
>>
>> Andy
> 
> 
>   Thanks for the confirmation Andy.
> 
>   I was wondering if you have any thoughts on whether this could
>   effect any of the other packages compiled with gcc-4.5.0?
> 
>   In my particular case i used the jhalfs scripts to build the development
>   LFS book which uses gcc-4.5.0.

I'm going to take a look at this for the kernel problem I have been having:

http://wiki.linuxfromscratch.org/lfs/ticket/2662

   -- Bruce



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