1 files changed, 15 insertions, 0 deletions

diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index 2ca62154f79b..29465d440043 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -62,6 +62,18 @@ static int e_snprintf(char *str, size_t size, const char *format, ...)
         return ret;
 }
 
+/* Check the name is good for event/group */
+static bool check_event_name(const char *name)
+{
+        if (!isalpha(*name) && *name != '_')
+                return false;
+        while (*++name != '\0') {
+                if (!isalpha(*name) && !isdigit(*name) && *name != '_')
+                        return false;
+        }
+        return true;
+}
+
 /* Parse probepoint definition. */
 static void parse_perf_probe_probepoint(char *arg, struct probe_point *pp)
 {
@@ -82,6 +94,9 @@ static void parse_perf_probe_probepoint(char *arg, struct probe_point *pp)
                 ptr = strchr(arg, ':');
                 if (ptr)        /* Group name is not supported yet. */
                         semantic_error("Group name is not supported yet.");
+                if (!check_event_name(arg))
+                        semantic_error("%s is bad for event name -it must "
+                                       "follow C symbol-naming rule.", arg);
                 pp->event = strdup(arg);
                 arg = tmp;
         }