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authorNamhyung Kim <namhyung.kim@lge.com>2012-11-14 20:47:40 +0400
committerArnaldo Carvalho de Melo <acme@redhat.com>2012-12-09 15:46:04 +0400
commit752914208ada0d9ae0a6b3bf2906d43f3605832f (patch)
tree24aa9815eafe719170c36e319aa0d5d317ac0534 /tools/perf/ui
parent919d590f13c94c5465db723178e4b72200fd5f90 (diff)
downloadlinux-752914208ada0d9ae0a6b3bf2906d43f3605832f.tar.xz
perf ui: Always compile error printing code
It is used everywhere so always build it regardless of ui engine. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Andi Kleen <ak@linux.intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Pekka Enberg <penberg@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/1352911664-24620-2-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/ui')
-rw-r--r--tools/perf/ui/util.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/tools/perf/ui/util.c b/tools/perf/ui/util.c
index 4f989774c8c6..3014a7cd5271 100644
--- a/tools/perf/ui/util.c
+++ b/tools/perf/ui/util.c
@@ -52,6 +52,16 @@ int ui__warning(const char *format, ...)
return ret;
}
+int ui__error_paranoid(void)
+{
+ return ui__error("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");
+}
+
/**
* perf_error__register - Register error logging functions