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Obj-C Exceptions In Gecko

237 bytes added, 22:33, 14 September 2007
Gecko 1.9
Gecko 1.9 has dropped support 10.2. As mentioned in the bug above, 10.3 brought new exception handling support. It's possible that setjmp and longjmp may no longer be used for some parts of the exception system, which now appears to be in the compiler, at least partially. Some parts of the exception handling are still using setjmp/longjmp, obviously, because stack smashing is still occurring. Need to look into exactly what's safe and what's not. We may end up in the same boat as on branch, unfortunately.
 
As far as I've seen, Apple documents what exceptions can get thrown. We really should just exit the browser with a nonzero exit code when we catch an unhandled ObjC exception. --[[User:Cbarrett|Cbarrett]] 15:33, 14 September 2007 (PDT)
== setjmp/longjmp not entirely fatal? ==
It should be noted that as long as the stack is able to be unwound properly once we return to C++, things should be OK. It's still unclear why the crashes are happening in the first place, so perhaps a different NSExceptionHandler mask, using an NSExceptionHandler delegate, or calling NSSetUncaughtExceptionHandler will allow us to handle ObjC exceptions in a more graceful manner.
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