X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=os%2Fos-linux.h;h=8d3b97ea1f04015af100c990aba4d50914f99df9;hp=a36552ba68ba93caf6ca58e5fc9761fc53c0b88d;hb=610a730c79c90298d41cb3138041e83ba9cdb1d2;hpb=39e8e01691c9d5765795417ee49a40d5ae08cb8b;ds=sidebyside

diff --git a/os/os-linux.h b/os/os-linux.h
index a36552ba..8d3b97ea 100644
--- a/os/os-linux.h
+++ b/os/os-linux.h
@@ -12,6 +12,7 @@
 #include <linux/unistd.h>
 #include <linux/raw.h>
 #include <linux/major.h>
+#include <endian.h>
 
 #include "indirect.h"
 #include "binject.h"
@@ -286,6 +287,14 @@ static inline int fio_lookup_raw(dev_t dev, int *majdev, int *mindev)
 #define FIO_MADV_FREE	MADV_REMOVE
 #endif
 
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+#define FIO_LITTLE_ENDIAN
+#elif __BYTE_ORDER == __BIG_ENDIAN
+#define FIO_BIG_ENDIAN
+#else
+#error "Unknown endianness"
+#endif
+
 #define CACHE_LINE_FILE	\
 	"/sys/devices/system/cpu/cpu0/cache/index0/coherency_line_size"