Add usage for --exclude option

[lttng-tools.git] / src / bin / lttng / commands / enable_events.c

diff --git a/src/bin/lttng/commands/enable_events.c b/src/bin/lttng/commands/enable_events.c
index 2dff63b92fb4969423f6b9e0a2f84c5f44d6a89f..6ea3c919f1dc8806cb2de0e4515d81a0e06d34f2 100644 (file)
--- a/src/bin/lttng/commands/enable_events.c
+++ b/src/bin/lttng/commands/enable_events.c
@@ -43,6 +43,7 @@ static char *opt_function;
 static char *opt_function_entry_symbol;
 static char *opt_channel_name;
 static char *opt_filter;
+static char *opt_exclude;
 #if 0
 /* Not implemented yet */
 static char *opt_cmd_name;
@@ -61,6 +62,7 @@ enum {
        OPT_LOGLEVEL_ONLY,
        OPT_LIST_OPTIONS,
        OPT_FILTER,
+       OPT_EXCLUDE,
 };
 
 static struct lttng_handle *handle;
@@ -89,6 +91,7 @@ static struct poptOption long_options[] = {
        {"loglevel-only",  0,     POPT_ARG_STRING, 0, OPT_LOGLEVEL_ONLY, 0, 0},
        {"list-options", 0, POPT_ARG_NONE, NULL, OPT_LIST_OPTIONS, NULL, NULL},
        {"filter",         'f', POPT_ARG_STRING, &opt_filter, OPT_FILTER, 0, 0},
+       {"exclude",        'x', POPT_ARG_STRING, &opt_exclude, OPT_EXCLUDE, 0, 0},
        {0, 0, 0, 0, 0, 0, 0}
 };
 
@@ -192,6 +195,12 @@ static void usage(FILE *ofp)
        fprintf(ofp, "                           '$ctx.procname == \"demo*\"'\n");
        fprintf(ofp, "                           '$ctx.vpid >= 4433 && $ctx.vpid < 4455'\n");
        fprintf(ofp, "                           '$ctx.vtid == 1234'\n");
+       fprintf(ofp, "  -x, --exclude LIST\n");
+       fprintf(ofp, "                           Add exclusions to UST tracepoints:\n");
+       fprintf(ofp, "                           Events that match any of the items\n");
+       fprintf(ofp, "                           in the comma-separated LIST are not\n");
+       fprintf(ofp, "                           enabled, even if they match a wildcard\n");
+       fprintf(ofp, "                           definition of the event.\n");
        fprintf(ofp, "\n");
 }
 
@@ -714,6 +723,8 @@ int cmd_enable_events(int argc, const char **argv)
                        goto end;
                case OPT_FILTER:
                        break;
+               case OPT_EXCLUDE:
+                       break;
                default:
                        usage(stderr);
                        ret = CMD_UNDEFINED;