Re: [Gcl-devel] Re: Need access to a FreeBSD machine for 2.6.2 testing

[Camm Maguire]

Mark Murray <address@hidden> writes:

> Camm Maguire writes:
> > Greetings, and thanks!  OK, I see you are using custreloc as the
> > default linking option.  I'll do the tests with that.  Please keep in
> > ming this will limit you to i386 and sparc for the time being.  bfd
> > has extended the native object relocation abilities of gcl greatly,
> > though not yet universally.
> 
> Amd64, I suspect also, as it is nearly identical to i386. The emacs folks
> have an unexec/undump funtion which works on (nearly) everything without
> needing bfd. Maybe you want to have a look at that?
> 

We use unexec from emacs anyway.  We need either bfd or custreloc
native object linking to be able to load the executable code of the
module into the .data segment of the running executable, from where
unexec can dump it.  With the dlopem alternative, one cannot preserve
such object loads across unexec image dumps/reexecutions of the saved
image.  

So in short without bfd, you will have to default to dlopen on amd64,
and the build will be somewhat limited.

> >                              May I also suggest that you should not
> > export libbfd.a if you are not going to export the corresponding
> > headers, as the former is practically useless without the latter
> > (unlike the dynamic lib.)
> 
> I've killed it. The one you found in /usr/lib was the result of
> experimentation and is now history.
> 

Thanks!

Take care,

> > Mark Murray <address@hidden> writes:
> > 
> > > Camm Maguire writes:
> > > > Greetings, and thanks!  Can you please install FreeBSD binutils-dev
> > > > somewhere?  I need bfd.h/bfdlink.h.
> > > 
> > > We don't export those. If you really need them, we are in trouble.
> > > 
> > > The reason is that they are a seriously moving target, and they
> > > cause nasty cross-platform and upgrading issues. We do use GCC, and
> > > we do use GNU Binutils, but we consider those headers and libbfd
> > > to be internal use only. Can the GNU Emacs unexec way not be used
> > > instead?
> > > 
> > > Look in graveyard:/usr/ports/lang/gcl-*/ to see the FreeBSD port
> > > wrappers to build GCL. In particular, the BSD port Makefiles will
> > > give you the configuration arguments.
> > > Also - I have dropped some patches in your home dir that allow
> > > GCL to build. With these patches, Axiom and Maxima both work.
> > > 
> > > M
> > > --
> > > Mark Murray
> > > iumop ap!sdn w,I idlaH
> > > 
> > > 
> > > 
> > 
> > -- 
> > Camm Maguire                                                address@hidden
> > ==========================================================================
> > "The earth is but one country, and mankind its citizens."  --  Baha'u'llah
> --
> Mark Murray
> iumop ap!sdn w,I idlaH
> 
> 
> 

-- 
Camm Maguire                                            address@hidden
==========================================================================
"The earth is but one country, and mankind its citizens."  --  Baha'u'llah