[Bug c++/11644] Hang in throw when unloading a library

[peter dot rost at freenet dot de]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11644



------- Additional Comments From peter dot rost at freenet dot de  2003-08-19 15:32 -------
Subject: Re:  Hang in throw when unloading a library

well, it sounds good, but

1. how can i determine if my dlclose is built with/without exception 
unwinding?
2. for me it's very mysterious, that the debian-compiled-version of gcc 2.95 
doesnot have any problems with but gcc 3.x has them!? so, are there some more 
changes at dlclose which can produce the behaviour?

thanks a lot for your help, peter.

On Tuesday 19 August 2003 17:15, you wrote:
> PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.
>
> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11644
>
>
>
> ------- Additional Comments From lerdsuwa at gcc dot gnu dot org 
> 2003-08-19 15:15 ------- Two possible problems that make your code not
> working:
>
> 1 You need g++ and libstdc++ that are thread-enabled.
>   See this link for more info
>     http://gcc.gnu.org/bugs.html#nonbugs_cxx
>
> 2 The exception is thrown inside __fini_lib through the
>   function call chain:
>     main -> unloadLib -> dlclose -> __fini_Lib
>   If the dlclose in your C library is not built with
>   exception unwinding, thrown exception cannot propagate
>   back to main.
>
>
>
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