Dbg_syms_entered
extern void Dbg_syms_entered(Ofl_desc *, Sym *, Sym_desc *);
DBG_CALL(Dbg_syms_entered(ofl, sym, sdp));
DBG_CALL(Dbg_syms_entered(ofl, nsym, sdp));
DBG_CALL(Dbg_syms_entered(ofl, sdp->sd_sym,