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[FWD] [ mingw-Bugs-616059 ] Win Callbacks/C++
- From: Danny Smith <danny_r_smith_2001 at yahoo dot co dot nz>
- To: cygwin-apps <cygwin-apps at cygwin dot com>
- Date: Mon, 30 Sep 2002 10:10:15 +1000 (EST)
- Subject: [FWD] [ mingw-Bugs-616059 ] Win Callbacks/C++
Oscar Fuentes has discovered a serious problem with DWARF2 exception
handling in GCC in context of windows messages, reported below and discussed
in
several posts to mingw users.
This will also affect Cygwin apps that use C++ exceptions in
combination with windows callbacks.
The immediate kneejerk is to revert to sjlj exception handling.
What does Cygwin want to do? IMO, an even worse bug would be to have
mingw use sjlj and cygwin use Dwarf2, or vice-versa.
Danny
----- Original Message -----
From: <noreply@sourceforge.net>
To: <noreply@sourceforge.net>
Sent: Sunday, 29 September 2002 07:54
Subject: [Mingw-notify] [ mingw-Bugs-616059 ] Win Callbacks/C++
exceptions crashes app
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#616059, was opened at 2002-09-29 06:54
> You can respond by visiting:
>
https://sourceforge.net/tracker/?func=detail&atid=102435&aid=616059&grou
p_id=2435
>
> Category: None
> Group: None
> Status: Open
> Resolution: None
> Priority: 5
> Submitted By: Oscar Fuentes (oscarfuentes)
> Assigned to: Nobody/Anonymous (nobody)
> Summary: Win Callbacks/C++ exceptions crashes app
>
> Initial Comment:
> G++ 3.2 configured with DWARF2 exception handling (as distributed by
www.mingw.org).
>
> When a C++ exception is thrown from a Windows Callback (or, more
generally, the exception needs to cross a Windows callback on its way to
the exception handler) the application dies before reaching the
exception handler.
>
> On the attached test case, an exception is thrown when you close the
window. The exception handler is never reached.
>
> ----------------------------------------------------------------------
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> You can respond by visiting:
>
https://sourceforge.net/tracker/?func=detail&atid=102435&aid=616059&grou
p_id=2435
>
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