[Xen-devel] GDB stub for stubdom

[Ferenc Wagner <wferi@xxxxxxx>]

Hi,

Did anybody consider adding some remote debugging facility to stubdom?
Or maybe it's already present?  If not, putting in a GDB remote stub
shouldn't be too hard, though I don't know much about the low level
architecture.  Such code is present in gPXE, for example.

Usage docs: http://www.etherboot.org/wiki/dev/gdbstub
Main code: http://git.etherboot.org/?p=gpxe.git;a=blob;f=src/core/gdbstub.c

The transport could be some Xen specific channel between the stubdom
and dom0 (that would be out of band and hopefully also easy to
implement) translated to/from TCP by a proxy on dom0.

(The official GDB example seems uglier:
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/i386-stub.c?cvsroot=src)
-- 
Regards,
Feri.

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