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Re: stdcall lib functions with exception throwing callbacks vs Dwarf2 EH

From: Richard Henderson <rth at redhat dot com>
To: "Aaron W. LaFramboise" <aaronavay62 at aaronwl dot com>
Cc: Danny Smith <dannysmith at users dot sourceforge dot net>, gcc at gcc dot gnu dot org, Cygwin <cygwin at cygwin dot com>, mingw-dvlpr <mingw-dvlpr at lists dot sourceforge dot net>
Date: Wed, 24 Nov 2004 09:31:39 -0800
Subject: Re: stdcall lib functions with exception throwing callbacks vs Dwarf2 EH
References: <001701c4d1ab$949322e0$0a6d65da@DANNY> <20041124003240.GA6028@redhat.com> <000c01c4d1fa$3f297fd0$e56d65da@DANNY> <20041124080708.GA3578@redhat.com> <41A44B97.1060007@aaronwl.com>

On Wed, Nov 24, 2004 at 02:51:35AM -0600, Aaron W. LaFramboise wrote:
> Is there a way to have the DW2 unwinder call some particular function,
> for eg, if the previous frame was not compiled with -fexceptions, rather
> than just crashing?  Is this what MD_FALLBACK_FRAME_STATE_FOR is for?

Yes, sortof.  I don't know if you can make it do what you want, exactly.

> Other Windows compilers are able to handle this condition.

If you want to be able to handle this, I recommend that you NOT use dwarf2.
Handling this condition is not in the dwarf2 design requirements.

r~

Follow-Ups:
- Re: stdcall lib functions with exception throwing callbacks vs Dwarf2 EH
  - From: Andrew Haley

References:
- stdcall lib functions with exception throwing callbacks vs Dwarf2 EH
  - From: Danny Smith
- Re: stdcall lib functions with exception throwing callbacks vs Dwarf2 EH
  - From: Richard Henderson
- Re: stdcall lib functions with exception throwing callbacks vs Dwarf2EH
  - From: Danny Smith
- Re: stdcall lib functions with exception throwing callbacks vs Dwarf2 EH
  - From: Richard Henderson
- Re: stdcall lib functions with exception throwing callbacks vs Dwarf2EH
  - From: Aaron W. LaFramboise

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