Move endianness check to OS parts

[fio.git] / os / os-linux.h

diff --git a/os/os-linux.h b/os/os-linux.h
index a36552ba68ba93caf6ca58e5fc9761fc53c0b88d..8d3b97ea1f04015af100c990aba4d50914f99df9 100644 (file)
--- 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"