LTTng » LTTng-tools

In lttng-tools-2.2.0\src\bin\lttng\commands\enable_events.c, we have:

static struct poptOption long_options[] = {
    /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
...
    {"filter",         'f', POPT_ARG_STRING, &opt_filter, OPT_FILTER, 0, 0},
    {0, 0, 0, 0, 0, 0, 0}
};

/*
 * usage
 */
static void usage(FILE *ofp)
{
    fprintf(ofp, "usage: lttng enable-event NAME[,NAME2,...] [-k|-u] [OPTIONS] \n");
    fprintf(ofp, "\n");
...
    fprintf(ofp, "Event options:\n");
    fprintf(ofp, "    --filter \'expression\'\n");
    fprintf(ofp, "                           Filter expression on event fields and context.\n");

The line:

    fprintf(ofp, "    --filter \'expression\'\n");

should be:

    fprintf(ofp, "-f, --filter \'expression\'\n");