Fix compile for older Linux without mmap MAP_HUGETLB

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

diff --git a/os/os-linux.h b/os/os-linux.h
index a36552ba68ba93caf6ca58e5fc9761fc53c0b88d..e9d7cf3e6f6e0cf4af791bab019fc9faf9586e21 100644 (file)
--- a/os/os-linux.h
+++ b/os/os-linux.h
@@ -1,10 +1,13 @@
 #ifndef FIO_OS_LINUX_H
 #define FIO_OS_LINUX_H
 
+#define        FIO_OS  os_linux
+
 #include <sys/ioctl.h>
 #include <sys/uio.h>
 #include <sys/syscall.h>
 #include <sys/vfs.h>
+#include <sys/mman.h>
 #include <unistd.h>
 #include <fcntl.h>
 #include <errno.h>
@@ -12,6 +15,7 @@
 #include <linux/unistd.h>
 #include <linux/raw.h>
 #include <linux/major.h>
+#include <endian.h>
 
 #include "indirect.h"
 #include "binject.h"
@@ -31,7 +35,6 @@
 #define FIO_HAVE_RAWBIND
 #define FIO_HAVE_BLKTRACE
 #define FIO_HAVE_STRSEP
-#define FIO_HAVE_FALLOCATE
 #define FIO_HAVE_POSIXAIO_FSYNC
 #define FIO_HAVE_PSHARED_MUTEX
 #define FIO_HAVE_CL_SIZE
@@ -42,15 +45,28 @@
 #define FIO_HAVE_BINJECT
 #define FIO_HAVE_CLOCK_MONOTONIC
 #define FIO_HAVE_GETTID
+#define FIO_USE_GENERIC_INIT_RANDOM_STATE
+#define FIO_HAVE_E4_ENG
+
+#ifdef MAP_HUGETLB
+#define FIO_HAVE_MMAP_HUGE
+#endif
 
 /*
  * Can only enable this for newer glibcs, or the header and defines are
  * missing
  */
 #if __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 6
+#define FIO_HAVE_FALLOCATE
+#endif
+#if __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 8
 #define FIO_HAVE_LINUX_FALLOCATE
 #endif
 
+#ifdef FIO_HAVE_LINUX_FALLOCATE
+#define FIO_HAVE_FALLOC_ENG
+#endif
+
 #ifdef SYNC_FILE_RANGE_WAIT_BEFORE
 #define FIO_HAVE_SYNC_FILE_RANGE
 #endif
@@ -89,8 +105,8 @@ typedef struct drand48_data os_random_state_t;
        sched_getaffinity((pid), (ptr))
 #endif
 
-#define fio_cpu_clear(mask, cpu)       CPU_CLR((cpu), (mask))
-#define fio_cpu_set(mask, cpu)         CPU_SET((cpu), (mask))
+#define fio_cpu_clear(mask, cpu)       (void) CPU_CLR((cpu), (mask))
+#define fio_cpu_set(mask, cpu)         (void) CPU_SET((cpu), (mask))
 
 static inline int fio_cpuset_init(os_cpu_mask_t *mask)
 {
@@ -286,6 +302,18 @@ 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 fio_swap16(x)  __bswap_16(x)
+#define fio_swap32(x)  __bswap_32(x)
+#define fio_swap64(x)  __bswap_64(x)
+
 #define CACHE_LINE_FILE        \
        "/sys/devices/system/cpu/cpu0/cache/index0/coherency_line_size"