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misc.h
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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: clib/misc.h $ */
/* */
/* OpenPOWER FFS Project */
/* */
/* Contributors Listed Below - COPYRIGHT 2014,2015 */
/* [+] International Business Machines Corp. */
/* */
/* */
/* Licensed under the Apache License, Version 2.0 (the "License"); */
/* you may not use this file except in compliance with the License. */
/* You may obtain a copy of the License at */
/* */
/* http://www.apache.org/licenses/LICENSE-2.0 */
/* */
/* Unless required by applicable law or agreed to in writing, software */
/* distributed under the License is distributed on an "AS IS" BASIS, */
/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or */
/* implied. See the License for the specific language governing */
/* permissions and limitations under the License. */
/* */
/* IBM_PROLOG_END_TAG */
/*
* File: misc.h
* Author: Shaun Wetzstein <[email protected]?
* Descr: Misc. library helper functions
* Note:
* Date: 10/22/10
*/
#ifndef __MISC_H__
#define __MISC_H__
#include <stdint.h>
#include <stdio.h>
#include <sys/syscall.h>
#include "attribute.h"
#include "align.h"
#include "min.h"
#include "max.h"
#define INT32_BIT (CHAR_BIT*sizeof(int32_t))
#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
#ifndef be16toh
#include <byteswap.h>
#if __BYTE_ORDER == __LITTLE_ENDIAN
#define be16toh(x) __bswap_16(x)
#define htobe16(x) __bswap_16(x)
#define le16toh(x) (x)
#define htole16(x) (x)
#else
#define be16toh(x) (x)
#define htobe16(x) (x)
#define le16toh(x) __bswap_16(x)
#define htole16(x) __bswap_16(x)
#endif
#endif
#ifndef be32toh
#include <byteswap.h>
#if __BYTE_ORDER == __LITTLE_ENDIAN
#define be32toh(x) __bswap_32(x)
#define htobe32(x) __bswap_32(x)
#define le32toh(x) (x)
#define htole32(x) (x)
#else
#define be32toh(x) (x)
#define htobe32(x) (x)
#define le32toh(x) __bswap_32(x)
#define htole32(x) __bswap_32(x)
#endif
#endif
#ifndef be64toh
#include <byteswap.h>
#if __BYTE_ORDER == __LITTLE_ENDIAN
#define be64toh(x) __bswap_64(x)
#define htobe64(x) __bswap_64(x)
#define le64toh(x) (x)
#define htole64(x) (x)
#else
#define be64toh(x) (x)
#define htobe64(x) (x)
#define le64toh(x) __bswap_64(x)
#define htole64(x) __bswap_64(x)
#endif
#endif
#ifndef gettid
#define gettid() ({ \
pid_t __tid = (pid_t)syscall(SYS_gettid); \
__tid; \
})
#endif
#define is_pow2(x) \
({ \
typeof(x) _x = (x); \
(((_x) != 0) && !((_x) & ((_x) - 1))); \
})
#define __align(x,y) \
({ \
assert(is_pow2((y))); \
typeof((y)) _y = (y) - 1; \
typeof((x)) _x = ((x)+_y) & ~_y; \
_x; \
})
extern void prefetch(void *addr, size_t len, ...) __nonnull((1));
extern void print_binary(FILE *, void *, size_t);
extern void dump_memory(FILE *, uint32_t, const void *__restrict,
size_t) __nonnull((1, 3));
extern unsigned long align(unsigned long size, unsigned long offset);
extern int __round_pow2(int size);
#endif /* __MISC_H__ */