perf trace: Add fallback definition of EFD_SEMAPHORE

commit 79d26a6a19ace19faabf8d8d27d3430be2e26d34 upstream.

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>
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 8f3d09fb3d2e0d6414521234c666767afdf5f983..aaeee081a70dc204e899b90e98876b2d9368d4c7 100644 (file)
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -35,6 +35,10 @@
 # define MADV_UNMERGEABLE      13
 #endif
 
+#ifndef EFD_SEMAPHORE
+# define EFD_SEMAPHORE         1
+#endif
+
 struct tp_field {
        int offset;
        union {