Stupid driver build/debug questions

Julian Elischer julian at
Thu Mar 27 12:25:13 PDT 2008

Alexander Sack wrote:
> Hello:
> New to the FreeBSD kernel and I'm investigating a driver problem
> (wasn't sure what list this should go on).
> I was wondering how to make a driver statically built instead of a
> loadable module?  Is this an artifact of the driver source build or
> the generic kernel configuration mechanism via options etc.?  i.e.
> does a driver need to use something different than the
> template make file to build a static driver.
> What I am trying to do is break at attach time more easily than
> stepping through driver_probe_and_attach()/driver_attach_child() until
> the attach routine gets called.  I realize I can add a kdb_enter() but
> I was trying to do this on a live system without rebuilding the kernel
> (I understand this contradicts my first question but I still want to
> know how to build drivers statically).

put the filennames in /sys/conf/files or files.i386 (or whatever)

at one stage you could also have a files.{CONFIGNAME} but I haven't 
tried that for a long time.

> Thanks!
> -aps

More information about the freebsd-hackers mailing list