perf, ARC: Enable building perf tools for ARC

Although with uClibc there's more we need to do

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>

1 files changed, 6 insertions, 0 deletions

diff --git a/tools/perf/perf.h b/tools/perf/perf.h
index 2c340e7da458..8a68ad39e1b6 100644
--- a/tools/perf/perf.h
+++ b/tools/perf/perf.h
@@ -98,6 +98,12 @@ void get_term_dimensions(struct winsize *ws);
 #define CPUINFO_PROC    "cpu model"
 #endif
 
+#ifdef __arc__
+#define rmb()           asm volatile("" ::: "memory")
+#define cpu_relax()     rmb()
+#define CPUINFO_PROC    "Processor"
+#endif
+
 #include <time.h>
 #include <unistd.h>
 #include <sys/types.h>