From 232f9b73353e0322fe135d3029beecedaed7a17b Mon Sep 17 00:00:00 2001
From: Jens Axboe <axboe@kernel.dk>
Date: Tue, 4 Oct 2011 14:45:20 +0200
Subject: [PATCH 1/1] More endianness for platforms

Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 SERVER-TODO     |  2 +-
 os/os-freebsd.h | 11 +++++++++++
 os/os-solaris.h | 11 +++++++++++
 os/os-windows.h |  6 ++++++
 os/os.h         | 24 ++++++++++++++++++++++++
 5 files changed, 53 insertions(+), 1 deletion(-)

diff --git a/SERVER-TODO b/SERVER-TODO
index 8b048cba..3395c493 100644
--- a/SERVER-TODO
+++ b/SERVER-TODO
@@ -1,2 +1,2 @@
 - Passing of float/doubles
-- Passing of text
+- Endianness coverage
diff --git a/os/os-freebsd.h b/os/os-freebsd.h
index 317d403f..1a4f1131 100644
--- a/os/os-freebsd.h
+++ b/os/os-freebsd.h
@@ -5,6 +5,7 @@
 #include <sys/sysctl.h>
 #include <sys/disk.h>
 #include <sys/thr.h>
+#include <sys/endian.h>
 
 #include "../file.h"
 
@@ -18,6 +19,16 @@
 
 #define OS_MAP_ANON		MAP_ANON
 
+#if BYTE_ORDER == LITTLE_ENDIAN
+#define FIO_LITTLE_ENDIAN
+#else
+#define FIO_BIG_ENDIAN
+#endif
+
+#define fio_swap16(x)	bswap16(x)
+#define fio_swap32(x)	bswap32(x)
+#define fio_swap64(x)	bswap64(x)
+
 typedef off_t off64_t;
 
 static inline int blockdev_size(struct fio_file *f, unsigned long long *bytes)
diff --git a/os/os-solaris.h b/os/os-solaris.h
index c0d3c30f..ef37e499 100644
--- a/os/os-solaris.h
+++ b/os/os-solaris.h
@@ -8,6 +8,7 @@
 #include <sys/pset.h>
 #include <sys/mman.h>
 #include <sys/dkio.h>
+#include <sys/byteorder.h>
 
 #include "../file.h"
 
@@ -24,6 +25,16 @@
 #define OS_MAP_ANON		MAP_ANON
 #define OS_RAND_MAX		2147483648UL
 
+#if defined(_BIG_ENDIAN)
+#define FIO_BIG_ENDIAN
+#else
+#define FIO_LITTLE_ENDIAN
+#endif
+
+#define fio_swap16(x)	BSWAP_16(x)
+#define fio_swap32(x)	BSWAP_32(x)
+#define fio_swap64(x)	BSWAP_64(x)
+
 struct solaris_rand_seed {
 	unsigned short r[3];
 };
diff --git a/os/os-windows.h b/os/os-windows.h
index db4127b3..4af212d9 100644
--- a/os/os-windows.h
+++ b/os/os-windows.h
@@ -5,6 +5,7 @@
 #include <errno.h>
 #include <windows.h>
 #include <psapi.h>
+#include <stdlib.h>
 
 #include "../smalloc.h"
 #include "../file.h"
@@ -26,6 +27,11 @@
 
 #define FIO_PREFERRED_ENGINE	"windowsaio"
 
+#define FIO_LITTLE_ENDIAN
+#define fio_swap16(x)	_byteswap_ushort(x)
+#define fio_swap32(x)	_byteswap_ulong(x)
+#define fio_swap64(x)	_byteswap_uint64(x)
+
 typedef off_t off64_t;
 
 typedef struct {
diff --git a/os/os.h b/os/os.h
index 2eb38e87..33baf732 100644
--- a/os/os.h
+++ b/os/os.h
@@ -115,6 +115,30 @@ typedef unsigned long os_cpu_mask_t;
 #define FIO_MAX_JOBS		2048
 #endif
 
+#if 0
+static inline uint16 fio_swap16(uint16_t val)
+{
+	return (val << 8) | (val >> 8);
+}
+
+static inline uint32_t bswap_32(uint32_t val)
+{
+	val = ((val & 0xff00ff00UL) >> 8) | ((val & 0x00ff00ffUL) << 8);
+
+	return (val >> 16) | (val << 16);
+}
+
+static inline uint64_t bswap_64(uint64_t x)
+{
+	val = ((val & 0xff00ff00ff00ff00ULL) >> 8) |
+	      ((val & 0x00ff00ff00ff00ffULL) << 8);
+	val = ((val & 0xffff0000ffff0000ULL) >> 16) |
+	      ((val & 0x0000ffff0000ffffULL) << 16);
+
+	return (val >> 32) | (val << 32);
+}
+#endif
+
 #ifndef FIO_HAVE_BLKTRACE
 static inline int is_blktrace(const char *fname)
 {
-- 
2.25.1