[PATCH v3] Perf-tool/MIPS: support cross compiling of tools/perf for MIPS

[Deng-Cheng Zhu <dengcheng.zhu@gmail.com>]

This version fixed the cosmetic issue pointed out by Ralf. If it looks ok,

Ralf, please help Ack it.


Thanks,


Deng-Cheng


Signed-off-by: Deng-Cheng Zhu<dengcheng.zhu@gmail.com>

---
 tools/perf/perf.h |   12 ++++++++++++++
 1 files changed, 12 insertions(+), 0 deletions(-)

diff --git a/tools/perf/perf.h b/tools/perf/perf.h
index 6fb379b..cd05284 100644
--- a/tools/perf/perf.h
+++ b/tools/perf/perf.h
@@ -73,6 +73,18 @@
 #define cpu_relax()    asm volatile("":::"memory")
 #endif

+#ifdef __mips__
+#include "../../arch/mips/include/asm/unistd.h"
+#define rmb()          asm volatile(                                   \
+                               ".set   mips2\n\t"                      \
+                               "sync\n\t"                              \
+                               ".set   mips0"                          \
+                               : /* no output */                       \
+                               : /* no input */                        \
+                               : "memory")
+#define cpu_relax()    asm volatile("" ::: "memory")
+#endif
+
 #include<time.h>
 #include<unistd.h>
 #include<sys/types.h>