RE: [Gcl-devel] Re: How to link object files generated by GCL

[Bill Page]

On March 12, 2007 1:15 PM Camm Maguire wrote:
> 
> gcl
> >(load "foo.o")
> >(si::save-system "my-executable")
> 

Camm, I believe that question here was how to call a Lisp
function from C main program, not how to link a C object
file into Lisp.

Regards,
Bill Page.


> Take care,
> 
> address@hidden writes:
> 
> > I'm actually having hell doing this myself!
> > 
> > I'm trying to have a Lisp function compiled down to something I can
> > address in C. My biggest issue so far is getting the GCL .o file to
> > link in properly with my C binary. Calling "nm" on the GCL 
> object file
> > reveals a number of unlinked symbols:
> > 
> >          U call_or_link
> >          U do_init
> > 00000000 T init_code
> > 00000020 t L1
> > 00000008 d Lnk0
> > 00000100 t LnkT0
> >          U number_compare
> >          U number_minus
> >          U number_times
> >          U small_fixnum_table
> >          U vs_base
> >          U vs_limit
> >          U vs_overflow
> >          U vs_top
> > 00000000 d VVi
> > 
> > but I have no idea where these come from. I assume they're 
> provided by
> > something in GCL.
> > 
> > Does anyone know what file I must link in with this to get this to
> > compile?
> > 
> > Many thanks!
> > 
> > Jay P.
> > 
> > On Mar 5, 6:06 pm, address@hidden wrote:
> > > Hi all,
> > >     I've been trying to write a lisp function that will 
> compile down
> > > to a native function that can be called from C.  I'm 
> wanting to find a
> > > way to extend the ruby language with lisp, and in order 
> to do this I
> > > will have to write some C wrapper code around the lisp 
> code.  I have
> > > read that GCL supports compiling lisp code down to native 
> machine code
> > > and this is exactly what I'm looking for, however when I 
> compile the
> > > lisp code with GCL it creates an object file.  Now I know that the
> > > object file can be loaded by GCL but this is not what I 
> am wanting to
> > > do, I want to find out what that object file needs to be linked
> > > against so that I can call the compiled lisp function 
> from a seperate
> > > C program that will be used as a wrapper.  Does anyone 
> know how to do
> > > this? I have been searching for an answer but it seems 
> that every time
> > > someone asks this question he is never answered but rather told to
> > > just save an image of gcl to produce an executable, 
> however this is
> > > not what I seek to do.  If anyone has any insight as to 
> this problem
> > > please let me know.
> > >
> > > Thanks,
> > >       Mike M.
> > 
> > 
> 
> -- 
> Camm Maguire                                          
> address@hidden
> ==============================================================
> ============
> "The earth is but one country, and mankind its citizens."  -- 
>  Baha'u'llah
> 
> 
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