linux-kernel - [tip:perf/core] perf trace: Add fallback definition of EFD

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Message-ID: <tip-79d26a6a19ace19faabf8d8d27d3430be2e26d34@git.kernel.org>
Date:	Sat, 22 Feb 2014 09:55:20 -0800
From:	tip-bot for Ben Hutchings <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	acme@...hat.com, linux-kernel@...r.kernel.org, paulus@...ba.org,
	mingo@...hat.com, hpa@...or.com, mingo@...nel.org,
	a.p.zijlstra@...llo.nl, stable@...r.kernel.org,
	ben@...adent.org.uk, tglx@...utronix.de
Subject: [tip:perf/core] perf trace:
  Add fallback definition of EFD_SEMAPHORE

Commit-ID:  79d26a6a19ace19faabf8d8d27d3430be2e26d34
Gitweb:     http://git.kernel.org/tip/79d26a6a19ace19faabf8d8d27d3430be2e26d34
Author:     Ben Hutchings <ben@...adent.org.uk>
AuthorDate: Thu, 6 Feb 2014 01:00:35 +0000
Committer:  Arnaldo Carvalho de Melo <acme@...hat.com>
CommitDate: Mon, 10 Feb 2014 11:34:31 -0300

perf trace: Add fallback definition of EFD_SEMAPHORE

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

Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
Fixes: 49af9e93adfa ('perf trace: Beautify eventfd2 'flags' arg')
Cc: <stable@...r.kernel.org>
Cc: Ingo Molnar <mingo@...hat.com>
Cc: Paul Mackerras <paulus@...ba.org>
Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>
Cc: stable@...r.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@...hat.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 896f270..619d11c 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 {
--
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