Wed Dec 2 15:11:38 1998 Michael Snyder <msnyder@cleaver.cygnus.com>

Wed Dec  2 15:11:38 1998  Michael Snyder  <msnyder@cleaver.cygnus.com>

        * tracepoint.c: Move default definition of
        TARGET_VIRTUAL_FRAME_POINTER from here to target.h.
        * target.h: Add default definition of TARGET_VIRTUAL_FRAME_POINTER.
        * ax-gdb.c (gen_frame_args_address, gen_frame_locals_address):
        use TARGET_VIRTUAL_FRAME_POINTER to determine frame pointer.
        (gen_trace_for_expr): new argument, address of tracepoint,
        gets passed to new_agent_expr and added to struct agent_expr.
        (is_nontrivial_conversion): call to new_agent_expr now requires
        a dummy argument.  (agent_command): use get_current_frame() to
        get current PC scope; pass it to gen_trace_for_expr.
        * ax-general.c (new_agent_expr): new argument, address of
        tracepoint; store it in new field of struct agent_expr.
        * ax.h (struct agent_expr): add new field for tracepoint address.
        * ax-gdb.h: change prototypes to match above changes.