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From: Justin Hibbits <jrh29@alumni.cwru.edu>
To: Peter Grehan <grehan@freebsd.org>
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Date: Thu, 31 Jul 2008 22:52:54 -0400
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Subject: Re: SSP on PPC
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Hi Peter,

On Jul 31, 2008, at 10:27 PM, Peter Grehan wrote:

> Hi Justin,
>
>> With a recent upgrade of -CURRENT on my FreeBSD/ppc machine
>> it appears that the stack smash protection breaks exception
>> handling.
>
> Are you able to run your program in gdb and get some sort of
> backtrace (or faulting pc) ? I'll try and get a repro.
>
> later,
>
> Peter.

The backtrace from my simple test program is nearly useless.  I do  
have a faulting pc of 0x219a5ee4, which according to gdb is in  
_Unwind_GetIPInfo, but the only other frame in the backtrace is  
garbled.  Unfortunately, when I rebuilt world I didn't think to backup  
libgcc_s.so.1, so that pointer might not be too helpful, since I can't  
get to the instruction block it's in, and the address isn't included  
in the core dump.  If it helps at all, the CVS checkout timestamp I  
have is from Jul 28@21:39 EST.

- Justin