Date: Wed, 04 Dec 2002 15:47:41 -0800 From: Peter Wemm <peter@wemm.org> To: John Baldwin <jhb@FreeBSD.org> Cc: Andrew Gallatin <gallatin@cs.duke.edu>, alpha@FreeBSD.ORG, Yoriaki FUJIMORI <fujimori@ns.fujimori.cache.waseda.ac.jp>, alex <lex@adelaide.on.net> Subject: Re: link_elf: symbol osf1_wait4 undefined Message-ID: <20021204234741.D71802A7EA@canning.wemm.org> In-Reply-To: <XFMail.20021204122543.jhb@FreeBSD.org>
next in thread | previous in thread | raw e-mail | index | archive | help
John Baldwin wrote:
>
> On 04-Dec-2002 Andrew Gallatin wrote:
> >
> > alex writes:
> > > ahhhh. That solved the problem.
> > > What is the technical reason for having to load the osf1 module first ?
> >
> > Linux/alpha uses the same ABI as OSF/1 for a number of functions,
> > since they bootstrapped themselves from OSF/1 on alpha and never
> > bothered to go fully native. This ABI is already provided by our
> > osf1.ko module.
> >
> > The problem is that the osf1.ko module is SUPPOSED to be automatically
> > loaded as a dependancy of the linux module. I've asked the person who
> > wrote the module dependancy code for help on this, but he's moved on
> > to other things and has never answered. If somebody wants to look
> > into this, that would be great. I've never been able to figure it
> > out.
>
> The problem is here:
>
> > grep MODULE *
> linux_sysvec.c:MODULE_VERSION(linux, 1);
> linux_sysvec.c:MODULE_DEPEND(linux, osf1, 1, 1, 1);
> linux_sysvec.c:MODULE_DEPEND(linux, sysvmsg, 1, 1, 1);
> linux_sysvec.c:MODULE_DEPEND(linux, sysvsem, 1, 1, 1);
> linux_sysvec.c:MODULE_DEPEND(linux, sysvshm, 1, 1, 1);
> linux_sysvec.c:DECLARE_MODULE(linuxelf, linux_elf_mod, SI_SUB_EXEC, SI_ORDER_
ANY);
>
> All the dependencies are recorded for the non-existent linux module.
> In actuality, on Alpha there is a linuxelf module, and on i386 there
> are linuxelf and linuxaout modules. I'm trying to think about the
> best way to go about fixing this.
No. The MODULE_VERSION/MODULE_DEPEND stuff is completely seperate to
DECLARE_MODULE. They are not in the same name space. They are just tags.
This is so that we can have tags in raw binary (no executable code) files.
> Well, I have an untested patch at
> http://www.FreeBSD.org/~jhb/patches/linux.patch that might fix this.
> FWIW, the dependency of linux compat on the SYSV modules was broken on
> both i386 and alpha for the same reason. Use 'patch -p6' to apply this
> patch btw.
Nope, this assumes a connection between the namespaces.
> --
>
> John Baldwin <jhb@FreeBSD.org> <>< http://www.FreeBSD.org/~jhb/
> "Power Users Use the Power to Serve!" - http://www.FreeBSD.org/
>
> To Unsubscribe: send mail to majordomo@FreeBSD.org
> with "unsubscribe freebsd-alpha" in the body of the message
>
Cheers,
-Peter
--
Peter Wemm - peter@wemm.org; peter@FreeBSD.org; peter@yahoo-inc.com
"All of this is for nothing if we don't go to the stars" - JMS/B5
To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-alpha" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20021204234741.D71802A7EA>