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