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sys/sysmacros.h: support sysmacros header

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Signed-off-by: Jiuzhu Dong <dongjiuzhu1@xiaomi.com>
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Jiuzhu Dong 2022-07-14 02:27:34 +00:00 committed by Xiang Xiao
parent 3693d38763
commit 008cb0d31a
2 changed files with 33 additions and 1 deletions
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32
include/sys/sysmacros.h Normal file
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@ -0,0 +1,32 @@
/****************************************************************************
* include/sys/sysmacros.h
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you 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.
*
****************************************************************************/
#ifndef __INCLUDE_SYS_SYSMACROS_H
#define __INCLUDE_SYS_SYSMACROS_H
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
#define major(x) ((int)(0x00ff & ((x) >> 8)))
#define minor(x) ((int)(0xffff00ff & (x)))
#define makedev(maj, min) ((0xff00 & ((maj) << 8)) | (0xffff00ff & (min)))
#endif /* __INCLUDE_SYS_SYSMACROS_H */

2
include/sys/types.h
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@ -131,7 +131,7 @@ typedef int16_t gid_t;
/* dev_t is used for device IDs */
typedef uint16_t dev_t;
typedef uint32_t dev_t;
/* ino_t is used for file serial numbers */