• Simon (5/5) Nov 05 2008 I'm trying to link DMD D objects together with Cygwin GCC objects. I con...
• Jarrett Billingsley (5/10) Nov 05 2008 Converting object files from one format to another is a "cross your
• TomD (4/4) Nov 05 2008 You may try objconv from www.agner.org/optimize
• Don (7/13) Nov 06 2008 It probably doesn't work with DMD obj files yet. An update will be
• Simon (3/5) Nov 11 2008 I found the current GDC buggy (see the open bug list) and the developing...

Simon <werbungsfilter arcor.de> writes:

I'm trying to link DMD D objects together with Cygwin GCC objects. I convert
DMD OMF to COFF using link.exe -edit.
I use gphobos as runtime library.
Problem: When I declare a class in D, linking fails due to not resolved symbols
like _Object7__ClassZ
I tried to convert DMD phobos lib to coff (using link.exe), but this failed at
stream.obj, which had too many ?? sections. All other files went fine.
I must use the GCC linker, so what can I do to get the DMD phobos lib in COFF?

"Jarrett Billingsley" <jarrett.billingsley gmail.com> writes:

On Wed, Nov 5, 2008 at 8:17 AM, Simon <werbungsfilter arcor.de> wrote:
 I'm trying to link DMD D objects together with Cygwin GCC objects. I convert
DMD OMF to COFF using link.exe -edit.
 I use gphobos as runtime library.
 Problem: When I declare a class in D, linking fails due to not resolved
symbols like _Object7__ClassZ
 I tried to convert DMD phobos lib to coff (using link.exe), but this failed at
stream.obj, which had too many ?? sections. All other files went fine.
 I must use the GCC linker, so what can I do to get the DMD phobos lib in COFF?

Converting object files from one format to another is a "cross your
fingers" situation at best.

You'd probably be better off using GDC for Windows.  It uses MinGW and
outputs the same COFF objects that Cygwin's GCC uses.

TomD <t_demmer nospam.web.de> writes:

You may try objconv from www.agner.org/optimize

And then cross your fingers.

Ciao
Tom

Don <nospam nospam.com> writes:

TomD wrote:
 You may try objconv from www.agner.org/optimize
 
 And then cross your fingers.
 
 Ciao
 Tom

It probably doesn't work with DMD obj files yet. An update will be 
released in a couple of days, which includes some changes I made, to 
allow asm output from DMD obj files. Agner's made other improvements, 
but I don't know what they are yet.
But it still probably can't convert DMD obj's to coff format. Worth a 
try through.

Simon <werbungsfilter arcor.de> writes:

 You'd probably be better off using GDC for Windows.  It uses MinGW and
 outputs the same COFF objects that Cygwin's GCC uses.

I found the current GDC buggy (see the open bug list) and the developing
progress is quite slow, not many updates not even once in 2008.
So I try to stick with DMD. I hope they can switch to COFF someday.
Until then I try to convert the object files. It works fine until I use classes.