Date: Sat, 10 Jan 2004 14:24:41 -0800 From: Alfred Perlstein <alfred@freebsd.org> To: Dag-Erling Sm?rgrav <des@des.no> Cc: hackers@freebsd.org Subject: Re: help with linking please Message-ID: <20040110222441.GS9623@elvis.mu.org> In-Reply-To: <xzp3caojbo5.fsf@dwp.des.no> References: <20040110050033.GP9623@elvis.mu.org> <xzp3caojbo5.fsf@dwp.des.no>
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* Dag-Erling Sm?rgrav <des@des.no> [040110 03:17] wrote:
> Alfred Perlstein <alfred@freebsd.org> writes:
> > I'm having a hell of a time doing this so I can produce a static
> > .o or .a with most of the symbols stripped. Two problems seem to be
> > that even if I use "ld -r -o main.o obj1.o obj2.c libfoo.a" then I
> > can not strip symbols in obj1.o that are referenced from obj2.o
> > even after I combine the object files.
>
> You can link all your object files into one:
>
> $ ld -r -o all.o foo.o bar.o baz.o
>
> then strip unwanted symbols with {objcopy,strip} -N (or better yet,
> use {objcopy,strip} -K to strip all symbols except the ones you want
> to export)
>
> this is precisely what we do with klds to reduce namespace pollution.
It will refuse to strip symbols if:
foo.o:func1() references bar.o:func2().
But I need it to.
--
- Alfred Perlstein
- Research Engineering Development Inc.
- email: bright@mu.org cell: 408-480-4684
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