lttv_filter_append_expression(*(value_filter.v_pointer),((GString*)*(value_expression.v_pointer))->str);
//lttv_traceset_context_add_hooks(tc,
lttv_filter_append_expression(*(value_filter.v_pointer),((GString*)*(value_expression.v_pointer))->str);
//lttv_traceset_context_add_hooks(tc,