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authorEric Paris <eparis@redhat.com>2011-05-26 17:20:14 -0400
committerEric Paris <eparis@redhat.com>2011-05-26 17:20:14 -0400
commitea77f7a2e8561012cf100c530170f12351c3b53e (patch)
tree7302ac1064f4e364aadda84020a176804fb86e22 /tools/perf/util/debug.c
parent7a627e3b9a2bd0f06945bbe64bcf403e788ecf6e (diff)
parent61c4f2c81c61f73549928dfd9f3e8f26aa36a8cf (diff)
Merge commit 'v2.6.39' into 20110526
Conflicts: lib/flex_array.c security/selinux/avc.c security/selinux/hooks.c security/selinux/ss/policydb.c security/smack/smack_lsm.c
Diffstat (limited to 'tools/perf/util/debug.c')
-rw-r--r--tools/perf/util/debug.c12
1 files changed, 11 insertions, 1 deletions
diff --git a/tools/perf/util/debug.c b/tools/perf/util/debug.c
index 01bbe8ecec3f..155749d74350 100644
--- a/tools/perf/util/debug.c
+++ b/tools/perf/util/debug.c
@@ -57,7 +57,17 @@ void ui__warning(const char *format, ...)
}
#endif
-void trace_event(event_t *event)
+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;
const char *color = PERF_COLOR_BLUE;