build Ldc2 for win xp 32 bit Error

[Hans W. Uhlig]

On Saturday, 4 August 2012 at 16:11:45 UTC, Jacob Carlborg wrote:
> On 2012-08-04 17:20, Kagamin wrote:
>> Dwarf2 exceptions work in clang+gcc on win32. It would be SOME 
>> exception
>> handling (and quite interesting, I'd say).
>
> This post recently appeared on the Clang mailing list:
>
> "Hi,
>
> I have just been made aware that GCC 4.7.2 and later will use 
> SEH by default on Win64:
> http://gcc.gnu.org/ml/gcc-patches/2012-07/msg00512.html
>
> I would like to inquire as to possibility of this being 
> implemented in Clang/LLVM. As this type of exception handling 
> is much closer to the classic Dwarf model currently used, I 
> hope it won't be too difficult to implement this in Clang? 
> Remember that Win64 EH is broken right now, so any improvement 
> is the right improvement ;-)
>
> For 32-bit dw2 eh already works well, and in light of the misty 
> Borland patents will probably remain the only option for a 
> while.
>
> Thanks!
>
> Ruben
>
> PS: please also reply to my email address, as I'm not 
> subscribed to cfe-dev"

Charles Davis did a lot of work on Win64 SEH support in LLVM,
check commits r131652-r132880.

It's not finished yet. All the stuff for assembly code that uses
Win64 EH is done, but not the code-gen-side stuff (cf.
Win64Exception class in CodeGen). I was about to finish it, but
then real life happened :). This would have allowed us to use
DW2-style EH on Win64, but it still would have been problematic
for VC++ EH.

Kai Tietz was interested in finishing it, so I emailed him what I
have. I assume he's been working on it--he recently submitted a
patch to fix the permissions on .pdata/.xdata sections that I got
wrong :). I've CC'd him as well so we can see what he has for us.

Chip

It sounds like this should be targetable from ldc now.