Date: Fri, 6 Aug 2010 09:29:31 +0200 (CEST) From: Oliver Fromme <olli@lurza.secnetix.de> To: freebsd-stable@FreeBSD.ORG, doconnor@gsoft.com.au Subject: Re: Kernel symbol file alternate location Message-ID: <201008060729.o767TVFZ023996@lurza.secnetix.de> In-Reply-To: <50BEF58B-A155-4C46-B512-C94E0FD95D3E@gsoft.com.au>
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Daniel O'Connor wrote:
> On 06/08/2010, at 2:38, Oliver Fromme wrote:
> > > I think this is the main reason / has had to grow - the actual kernel
> > > is relatively small so even a 256Mb / could hold several, but with
> > > the symbol files it is not possible.
> >
> > I think a very simple solution would be to install the symbol
> > files elsewhere (probably configurable via make.conf), and
> > install symlinks in the kernel directory. If you do this,
> > tools using the symbol files won't have to be changed.
> >
> > This would probably be a fairly trivial change to the install-
> > kernel target, I guess. I don't have patches, though.
>
> Yeah, I don't think it's hard to move them, however I'm worried what
> it will break :)
>
> The only thing I can see that would have to change would be kgdb so
> it tells gdb where to find the symbols.
That's why I suggested to place symlinks in the kernel
directory. No change to kgdb necessary.
It might even be possible to not install the symbol files
at all, but keep them under /usr/obj, so the installkernel
target would have to do nothing more than create symlinks.
This could be controlled by a make.conf variable, like
SYMLINK_SYMBOLS=YES ("NO" would be the existing behaviour
of installing the actual symbol files in /boot/kernel).
Best regards
Oliver
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