On Nov 2, 2011, at 9:55 AM, Ben Kennedy wrote: > On 02 Nov 2011, at 8:22 am, Matt Neuburg wrote: > >> On Nov 2, 2011, at 3:39 AM, Kyle Sluder wrote: >> >>> I have to ask why you're printing $eax >> >> You tell me. I'm doing it because Ben Kennedy and a bunch of Web sites >> (after a Google search) told me to. m. > > And I'll tell you why I did: after being baffled for awhile why my app was > crashing with no console messages (and Xcode showing me main.c), I decided to > manually set breakpoints on objc_exception_throw and -[NSException raise], > hoping that would give me a reasonable chance of actually seeing, you know, > the exception that crashed my app. Of course "po self" doesn't work there, > so I crudely began po'ing every CPU register (not knowing much at all about > ABI conventions) until I happened on a message that resembled the description > string I was expecting. That happened to be eax in the simulator, and r0 on > the device.
And it does work as advertised (though only, in my tests, when the debugger is LLDB). > Indeed, I am running Snow Leopard on my Mac Pro. (I don't have much taste for > Lion, so I've thus far relegated it to my MacBook Pro as a test platform.) What he said. :) m. -- matt neuburg, phd = m...@tidbits.com, http://www.apeth.net/matt/ pantes anthropoi tou eidenai oregontai phusei Among the 2007 MacTech Top 25, http://tinyurl.com/2rh4pf Programming iOS 4! http://www.apeth.net/matt/default.html#iosbook RubyFrontier! http://www.apeth.com/RubyFrontierDocs/default.html TidBITS, Mac news and reviews since 1990, http://www.tidbits.com _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
