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authorMark Brown <broonie@opensource.wolfsonmicro.com>2011-04-18 17:12:14 +0100
committerMark Brown <broonie@opensource.wolfsonmicro.com>2011-04-18 17:12:14 +0100
commitfac56c2df51bc29b07b3c2dcfabf32a015a0522c (patch)
tree1ff5d84ecf4ea0bcbd42e2ef9624b5ade3810890 /tools/perf/util/debug.c
parent6caa15d0b84d2ea688fd31f4f172c8353463e109 (diff)
parenta6360dd37e1a144ed11e6548371bade559a1e4df (diff)
Merge commit 'v2.6.39-rc3' into for-2.6.39
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;