summaryrefslogtreecommitdiff
path: root/tools/perf/util/debug.c
diff options
context:
space:
mode:
authorDavid S. Miller <davem@davemloft.net>2011-04-11 13:44:25 -0700
committerDavid S. Miller <davem@davemloft.net>2011-04-11 13:44:25 -0700
commit1c01a80cfec6f806246f31ff2680cd3639b30e67 (patch)
tree0b554aad2ec1da71ecf6339d4ba51617bfe1dc3c /tools/perf/util/debug.c
parentc44d79950b2daa1025e62eede73e4e4a274d1ef3 (diff)
parent4a9f65f6304a00f6473e83b19c1e83caa1e42530 (diff)
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts: drivers/net/smsc911x.c
Diffstat (limited to 'tools/perf/util/debug.c')
-rw-r--r--tools/perf/util/debug.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/tools/perf/util/debug.c b/tools/perf/util/debug.c
index d4536a9e0d8c..155749d74350 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;