Date: Fri, 16 Oct 1998 20:27:35 -0500 From: Jacques Vidrine <n@nectar.com> To: Alex Zepeda <garbanzo@hooked.net> Cc: Peter Wemm <peter@netplex.com.au>, hackers@FreeBSD.ORG Subject: Re: ld and -soname Message-ID: <E0zUL9b-00014c-00@spawn.nectar.com> In-Reply-To: <Pine.BSF.4.00.9810161813560.3177-100000@zippy.dyn.ml.org> References: <Pine.BSF.4.00.9810161813560.3177-100000@zippy.dyn.ml.org>
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I didn't make my point well, I see.
Let me try again. Assume you have an application you are porting
to a FreeBSD ELF system, which contains something such as:
- -- Makefile excerpt --
libfoo.so.${FOO_VERSION}: ${FOO_OBJS}
${LD} ${LDFLAGS} -o libfoo.so.${FOO_VERSION} ${FOO_OBJS}
libbar.so.${BAR_VERSION}: ${BAR_OBJS}
${LD} ${LDFLAGS} -o libbar.so.${BAR_VERSION} ${BAR_OBJS}
- -- Makefile excerpt --
Now, again, I cannot define LDFLAGS to have "-soname
libfoo.so.${FOO_VERSION}" nor "-soname libbar.so.${BAR_VERSION}", now
can I? I must change the Makefile rules instead, i.e.
s/-o libbar.so.${BAR_VERSION}/-soname libbar.so.${BAR_VERSION} -o libbar.so.${BAR_VERSION}/
and
s/-o libfoo.so.${FOO_VERSION}/-soname libfoo.so.${FOO_VERSION} -o libfoo.so.${FOO_VERSION}/
Now, back to my original point...
I think that it would be handy to have a flag for ld (let's say
``--implied-soname'' for laughs) that would cause DT_SONAME to
be set to the filename supplied with the ``-o'' option. Then
I can port the above application by simply changing the definition
of LDFLAGS to include ``--implied-soname''.
Jacques Vidrine / n@nectar.com / nectar@FreeBSD.org
On 16 October 1998 at 18:14, Alex Zepeda <garbanzo@hooked.net> wrote:
> On Fri, 16 Oct 1998, Jacques Vidrine wrote:
> > MM, that won't solve the problem which I'm trying to solve.
> > I want an ``easy fix'' for the Makefiles in the world that
> > have something like
> >
> > libfoobar.so.${VERSION}: ${OBJS}
> > ${LD} ${LDFLAGS} -o libfoobar.so.${VERSION} ${OBJS}
> >
> > I can't very well put -soname in LDFLAGS.
>
> Yes you can. When you use gcc -Wl,-soname -Wl,libfoo.so.1 you tell gcc to
> pass -soname libfoo.so.1 to ld. With FreeBSD's gcc, you can use gcc
> -soname, but this is rather unportable.
>
> - alex
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