Re: Double free invisible due to autorelease pool

[David Ayers]

Sébastien Pierre wrote:

> Hi Richard, Adam,
>
> First, thanks a lot for your answers !
>
> Le 2 févr. 05, à 22:19, Adam Fedor a écrit :
>
> > > > I am currently in big trouble trying to find the cause of a "double 
> > > > free" which occurs when releasing an autorelease pool. Has anybody 
> > > > any idea to know how to identify where an autoreleased objects was 
> > > > freed (released, I guess) before being autoreleases ?
> > >
> > >
> > > [NSObject+enableDoubleReleaseCheck:] might well help you.
>
>
> This helped me to see that there is actually a double release check, but 
> I would like the debugger to break on the raising of the 
> "NSGenericException". On OSX, there is the "NSHangOnUncaughtException = 
> YES;" provided by NSDebug, but it does not seem to be on GNUstep :/
>
> Is there any workaround ?

Couldn't you simply set a breakpoint on -raise?  And if you really only 
want it in NSGenericException, then hack -raise to test the name and 
call a dummy function for which you have set breakpoint on a match.

Cheers,
David