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Date: Wed, 07 Oct 2009 21:22:00 -0000
From: Stan Shebs <stan@codesourcery.com>
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To: Michael Snyder <msnyder@vmware.com>
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Subject: Re: How to configure gdb to support '--arch=i386' on Mac OS X
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Michael Snyder wrote:
> Yeahhhh, this isn't going to work.
>
> Your binary is in... I forget what it's called -- oh, "mach-o" format.
> Our (fsf) gdb does not know how to read that file format.  And it
> would be a huge job to port over the changes in apple gdb that tell
> it how to read mach-o files (besides the fact that they are "fat"
> files, or at least potentially might be). m
The Mach-O part does work in 7.0, thanks to Tristan and AdaCore (check 
out gdb/machoread.c).  I don't think fatness-handling is there, although 
at the Xcode level one has to specifically ask for fat builds anyway, so 
one could avoid that particular obstacle and thus be well-positioned to 
smack one's face into the next wall. :-)

Stan