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authorRussell King <rmk+kernel@arm.linux.org.uk>2011-04-13 23:32:13 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2011-04-13 23:32:13 +0100
commita84bd2ee81ea1bdbd238cd1c380ec25f50a876c5 (patch)
treeba054d4b1a20dadec088fd4d8983fb5939227e46 /tools/perf/util/debug.c
parentaec995900fbc8cffa9f0f9e797ef07a0beb2b079 (diff)
parent7db6a7fa09884b34d2a5d4e6e4ed58664a5f0cf8 (diff)
Merge branch 'fix' of git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6 into fixes
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;