Re: Breaking into debugger after program hangs....
Re: Breaking into debugger after program hangs....
- Subject: Re: Breaking into debugger after program hangs....
- From: John Draper <email@hidden>
- Date: Thu, 28 Apr 2005 13:43:09 -0700
Nick Zitzmann wrote:
On Apr 28, 2005, at 4:40 AM, Ondra Cada wrote:
Does not feel right, the problem would be elsewhere. If zombies
enabled, the program does not crash this way. It would report what
happened.
...unless the object was an NSString, NSArray, NSNumber,
NSDictionary, NSSet, or some other object that is toll-free bridged
to a CoreFoundation object.
I never DID understand this "Toll free" concept.... can someone come
forward and explain
this? Isn't this just a kind of "wrapper" around the lower level
Carbon Procedural calls?
Well - then perhaps I was wrong in how I enabled Zombies, because I
just followed the
instructions in the Tech Note.... It clearly says I just select the
Target (Executeable)
and go to File --> Show Inspector --> Arguments (tab) --> and put in the
"NSZombieEnabled = YES"
Is that right? If so, then my program is NOT reporting what
happened.... Do I need to
issue some "secret" command to "gdb" to get this info?
And as of yet - nobody came forward to tell me how I can "break" out of
a "Hang" and
get back into the debugger.... isn't there ANYONE out on this list
that knows?
And where are these APPLE PEOPLE I heard about who actually read this
list...
Can't any of you please answer this?
Those objects don't become zombies even if NSZombieEnabled is
enabled, so the program will crash if they are accessed after being
deallocated.
So - what you are saying, is that this variable will NOT help me? It
DID make somewhat
of a difference... It caused the BAD_EXEC error? but it don't cause
it every time, and
when I remove it, I don't get this error at all, I just get it
hanging up.....Now if I can
figure out how to break out of this...
John
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