GDB - do we dare?
marcel at xcllnt.net
Sat Jul 12 13:39:35 PDT 2003
On Sat, Jul 12, 2003 at 01:05:00PM +0200, Mark Kettenis wrote:
> o We still have the Alpha gdb -k bug moved over from the 5.1 todo
> list to the 5.2 todo list. I think this is "just" a bug fix.
> I'm not really familliar with the support for debugging FreeBSD
> kernels in GDB since that support is not in the FSF tree. Is there
> any chance that this code will be contributed back? This would
> involve a copyright assignment, which could prove to be a major
The copyright of our kgdb support is already the FSF. See
> The current support for debuggung libc_r-based threading is also not
> present in the FSF tree. So the question raised above applies here too.
It looks to me that it can be contributed back.
> I'm not really familiar with KSE, but AFAIK the kernel interfaces for
> debugging KSE's aren't there yet.
I think that's mostly due to a knowledge gap. We just need people who
can bridge between gdb and FreeBSD. Someone like you :-)
> o gdb(1) has created a 6.x branch, so it's likely that a new release
> is in the pipeline (within 6 months?). Upgrading to 5.3 may make
> a future upgrade easier due to smaller diffs and refreshed know-how.
> GDB 6.0 will defenitely be released before the end of the year :-).
> We're aiming at the end of August, but it will probably be somewhere
> in September.
Interesting. It may even be possible to make gdb 6.0 part of FreeBSD 5.2
scheduling wise. Do we need a binutils update? We now have 2.13.2.
> A1 If having support for amd64 is a major reason for doing a new
> import of GDB, importing the upcoming GDB 6.0 would make more sense
> to me.
No ia64 is the major reason :-)
> A2 I'm volunteering to help out here.
Cool, thanks. Shall we just create a p4 branch and start hacking?
> better on FreeBSD/i386 and FreeBSD/Alpha now. Now that I've got it
> working on FreeBSD/amd64, I'll give FreeBSD/ia64 a shot.
We probably need to talk then, because the ptrace interface needs
to be fleshed out and I planned to do that while porting gdb.
Marcel Moolenaar USPA: A-39004 marcel at xcllnt.net
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