2000-10-13 Fernando Nasser <fnasser@cygnus.com>

2000-10-13  Fernando Nasser  <fnasser@cygnus.com>

        With Steven Johnson <sbjohnson@ozemail.com.au>
        This change fixes part of the possible scenarios where a race condition
        would cause core dumps if there were commands changing registers or
        other target resources in a startup script.
        The remaining scenarios are fixed by a patch to generic.gdbtk.c
        * interface.tcl (gdbtk_update_safe): New function. Like gdbtk_update
        but does nothing if target is running.
        (gdbtk_register_changed): Call the above safe version.
        (gdbtk_memory_changed): Likewise.