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Subject[PATCH 4/5] perf trace: Add fallback definition of EFD_SEMAPHORE
Date
From: Ben Hutchings <ben@decadent.org.uk>

glibc 2.17 is missing this on sparc, despite the fact that it's not
architecture-specific.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Fixes: 49af9e93adfa ('perf trace: Beautify eventfd2 'flags' arg')
Cc: <stable@vger.kernel.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: stable@vger.kernel.org
Link: http://lkml.kernel.org/r/1391648435.3003.100.camel@deadeye.wl.decadent.org.uk
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-trace.c | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 896f27047ed6..619d11c47a91 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -37,6 +37,10 @@
# define MADV_UNMERGEABLE 13
#endif

+#ifndef EFD_SEMAPHORE
+# define EFD_SEMAPHORE 1
+#endif
+
struct tp_field {
int offset;
union {
--
1.8.1.4


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