[fpc-devel] Masm

[Pierre Free Pascal]

  Would it be possible to give some simple example code that could be
tested?

  Did you try using the external linker to see if this makes a difference?
-Xe option should work for that.

Regards,

Pierre Muller


> -----Message d'origine-----
> De : fpc-devel-bounces at lists.freepascal.org [mailto:fpc-devel-
> bounces at lists.freepascal.org] De la part de Adriaan van Os
> Envoyé : vendredi 7 novembre 2014 11:25
> À : FPC developers' list
> Objet : Re: [fpc-devel] Masm
> 
> Marco van de Voort wrote:
> > In our previous episode, Adriaan van Os said:
> >> It is rather unfortunate that fpc can only link OMF, not COFF on
> Windows (I read on some previous
> >> posts that it is the other way round, but according to
> >> <http://stackoverflow.com/questions/966597/whats-the-difference-
> between-the-omf-and-coff-format>
> >> and <http://www.iecc.com/linker/linker03.html> that doesn't seem to
> be the case).
> >
> > Easiest is to check the files with cygwin "file", and then you'll
> see:
> >
> > C:\pp32\units\i386-win32\ptc>file ptc.o
> > ptc.o: MS Windows COFF Intel 80386 object file
> >
> > FPC is COFF, and I don't see anything in the referenced links saying
> > otherwise. The stackoverflow link is quite old.
> >
> > The first link seems to indicate that VSS can generate both omf and
> coff, so
> > let it generate COFF ?
> 
> Well, according to <http://msdn.microsoft.com/en-
> us/library/s0ksfwcf.aspx>
> 
> omf
> Generates object module file format (OMF) type of object module. /omf
> implies /c; ML.exe does not
> support linking OMF objects.
> Not available in ml64.exe.
> 
> So, COFF seems to be the standard for VCC. When I run mingw-objdump I
> get "file format pe-i386" for
> both a VCC .obj and an FPC .o.
> 
> But .... if the formats are the same, what is the cause of the error
> message " Illegal COFF Magic"
> when trying to statically link with FPC a VCC produced .obj or .lib ?
> 
> Regards,
> 
> Adriaan van Os
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