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authorVinson Lee <vlee@twitter.com>2015-03-23 22:09:16 +0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2015-03-24 18:08:07 +0300
commite1e455f4f4d35850c30235747620d0d078fe9f64 (patch)
treed19fa86d5ea9e74ee389a83f0267f2125244a599 /tools/perf/util/cloexec.h
parent77cfe388767572586b7d4fd533c38f902d020f17 (diff)
downloadlinux-e1e455f4f4d35850c30235747620d0d078fe9f64.tar.xz
perf tools: Work around lack of sched_getcpu in glibc < 2.6.
This patch fixes this build error with glibc < 2.6. CC util/cloexec.o cc1: warnings being treated as errors util/cloexec.c: In function ‘perf_flag_probe’: util/cloexec.c:24: error: implicit declaration of function ‘sched_getcpu’ util/cloexec.c:24: error: nested extern declaration of ‘sched_getcpu’ make: *** [util/cloexec.o] Error 1 Signed-off-by: Vinson Lee <vlee@twitter.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Yann Droneaud <ydroneaud@opteya.com> Cc: stable@vger.kernel.org # 3.18+ Link: http://lkml.kernel.org/r/1427137761-16119-1-git-send-email-vlee@twopensource.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/cloexec.h')
-rw-r--r--tools/perf/util/cloexec.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/tools/perf/util/cloexec.h b/tools/perf/util/cloexec.h
index 94a5a7d829d5..68888c29b04a 100644
--- a/tools/perf/util/cloexec.h
+++ b/tools/perf/util/cloexec.h
@@ -3,4 +3,10 @@
unsigned long perf_event_open_cloexec_flag(void);
+#ifdef __GLIBC_PREREQ
+#if !__GLIBC_PREREQ(2, 6)
+extern int sched_getcpu(void) __THROW;
+#endif
+#endif
+
#endif /* __PERF_CLOEXEC_H */