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digitalmars.D - Linking DMD D objects together with Cygwin GCC

reply 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?
Nov 05 2008
next sibling parent "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.
Nov 05 2008
prev sibling parent reply TomD <t_demmer nospam.web.de> writes:
You may try objconv from www.agner.org/optimize

And then cross your fingers.

Ciao
Tom
Nov 05 2008
parent 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.
Nov 06 2008