diff options
Diffstat (limited to 'tools/perf/util/debug.c')
| -rw-r--r-- | tools/perf/util/debug.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/tools/perf/util/debug.c b/tools/perf/util/debug.c index d4536a9e0d8..155749d7435 100644 --- a/tools/perf/util/debug.c +++ b/tools/perf/util/debug.c @@ -57,6 +57,16 @@ void ui__warning(const char *format, ...) } #endif +void ui__warning_paranoid(void) +{ + ui__warning("Permission error - are you root?\n" + "Consider tweaking /proc/sys/kernel/perf_event_paranoid:\n" + " -1 - Not paranoid at all\n" + " 0 - Disallow raw tracepoint access for unpriv\n" + " 1 - Disallow cpu events for unpriv\n" + " 2 - Disallow kernel profiling for unpriv\n"); +} + void trace_event(union perf_event *event) { unsigned char *raw_event = (void *)event; |