Re: Debugging objc_msg errors
Re: Debugging objc_msg errors
- Subject: Re: Debugging objc_msg errors
- From: Jeff Johnson <email@hidden>
- Date: Wed, 14 Jan 2009 13:18:19 -0600
John,
See the following for a good tutorial:
http://www.sealiesoftware.com/blog/archive/2008/09/22/objc_explain_So_you_crashed_in_objc_msgSend.html
-Jeff
On Jan 14, 2009, at 1:04 PM, John Nairn wrote:
I occasionally get difficult-to-debug crashes where that last thing
in the crash log is a message being sent, which ends up being a
message sent to an object that has been released (I think it is
objc_msg, but I am not looking at a crash log now). These happen
much more often in Leopard than in Tiger.
Since I have many messages going to many objects, it can take me a
long time to track these problems down (in one case several weeks).
I am fairly certain it is not a notification message because I also
remove objects as observers before they are deallocated. Is there a
debugging tool that can provide more information about what message
was sent to what object at the time of the crash?
---------------
John Nairn
GEDitCOM - Genealogy Software for the Macintosh
http://www.geditcom.com
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