Re: Problem with catching exceptions on ARM

[Mathias Bauer]

Hi,

Am 20.02.14 18:27, schrieb Mathias Bauer:

> I tested, that a simple @try/@catch works (an exception thrown in a
> function called from the @try block is caught successfully and the
> program exits normally). But throwing another exception in the function
> that caught the exception freezes the program again. It doesn't matter
> if the second exception is thrown inside the @catch block or outside of it.

More exactly:

EH works if an exception is thrown and caught in a function and then 
another exception is thrown and caught in that same function.

EH works if an exception is thrown in a function and caught in another 
function above on the call stack.

The program does not continue if an exception is thrown and caught in a 
function and then another exception is thrown in that same function and 
shall be caught in a function above on the call stack (the typical 
"rethrow" scenario).

From debugging the code I could see that in this case the function 
"internal_objc_personality" in eh_personality.c only finds a handler 
that is a cleanup, and so the function is called again and again, always 
with the same result.

Regards,
Mathias