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/*
* Copyright (c) 2013-2014 Intel Corporation. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef _OFI_OSD_H_
#define _OFI_OSD_H_
#include <stdint.h>
/* We use macros to create atomic and complex function definitions,
* and we can't have spaces in function names */
typedef long double long_double;
/* Complex data type support:
*
* Complex data types are operating system. For portability, each osd.h file
* must define the following datatypes and operations:
*
* Datatype:
* ofi_complex_XXX
*
* Operations:
* ofi_complex_eq_XXX, ofi_complex_sum_XXX, ofi_complex_prod_XXX,
* ofi_complex_land_XXX, ofi_complex_lor_XXX, ofi_complex_lxor_XXX
*
* Where XXX = float, double, or long_double
*/
#ifdef __APPLE__
#include <osx/osd.h>
#include <unix/osd.h>
#elif defined __FreeBSD__
#include <freebsd/osd.h>
#include <unix/osd.h>
#elif defined _WIN32
#include <windows/osd.h>
#else
#include <linux/osd.h>
#include <unix/osd.h>
#endif
#ifdef __GNUC__
#define OFI_LIKELY(x) __builtin_expect((x), 1)
#define OFI_UNLIKELY(x) __builtin_expect((x), 0)
#else
#define OFI_LIKELY(x) (x)
#define OFI_UNLIKELY(x) (x)
#endif
enum {
OFI_ENDIAN_UNKNOWN,
OFI_ENDIAN_BIG,
OFI_ENDIAN_LITTLE,
OFI_ENDIAN_BIG_WORD, /* Middle-endian, Honeywell 316 style */
OFI_ENDIAN_LITTLE_WORD, /* Middle-endian, PDP-11 style */
};
static inline uint8_t ofi_detect_endianness(void)
{
union {
uint8_t data[sizeof(uint32_t)];
uint32_t value;
} checker = {
.data = { 0x00, 0x01, 0x02, 0x03 },
};
switch (checker.value) {
case 0x00010203UL:
return OFI_ENDIAN_BIG;
case 0x03020100UL:
return OFI_ENDIAN_LITTLE;
case 0x02030001UL:
return OFI_ENDIAN_BIG_WORD;
case 0x01000302UL:
return OFI_ENDIAN_LITTLE_WORD;
default:
return OFI_ENDIAN_UNKNOWN;
}
}
#define OFI_MAGIC_64 (0x0F1C0DE0F1C0DE64)
#define OFI_MAGIC_PTR ((void *) (uintptr_t) OFI_MAGIC_64)
#define OFI_MAGIC_SIZE_T ((size_t) OFI_MAGIC_64)
#ifndef NDEBUG
#define OFI_DBG_VAR(type, name) type name;
#define OFI_DBG_SET(name, val) name = val
#define OFI_DBG_ADD(name, val) name += val
#define OFI_DBG_CALL(func) func
#else
#define OFI_DBG_VAR(type, name)
#define OFI_DBG_SET(name, val) do {} while (0)
#define OFI_DBG_ADD(name, val) do {} while (0)
#define OFI_DBG_CALL(func) do {} while (0)
#endif
#endif /* _OFI_OSD_H_ */
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