Cross-debugging of userland core files works, too.  I intend to make
all NetBSD target configurations look like this, over time.

Committed to trunk.

        * NEWS: Note new sh*-*-netbsdelf* configuration.
        * configure.host: Set gdb_host_cpu to sh for all sh*. 
        (sh*-*-netbsdelf*): New host. 
        * configure.tgt: Set gdb_target_cpu to sh for all sh*. 
        (sh*-*-netbsdelf*): New target. 
        * sh-nbsd-nat.c: New file.
        * sh-nbsd-tdep.c: New file.
        * sh-nbsd-tdep.h: New file.
        * config/sh/nbsd.mh: New file.
        * config/sh/nbsd.mt: New file.
        * config/sh/nm-nbsd.h: New file.
        * config/sh/tm-nbsd.h: New file.

-- 
        -- Jason R. Thorpe <thorpej@wasabisystems.com>