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tools/build/cross-build/include/linux/fcntl.h
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/*- | |||||
* SPDX-License-Identifier: BSD-2-Clause | |||||
* | |||||
* Copyright 2018-2020 Alex Richardson <arichardson@FreeBSD.org> | |||||
* | |||||
* This software was developed by SRI International and the University of | |||||
* Cambridge Computer Laboratory (Department of Computer Science and | |||||
* Technology) under DARPA contract HR0011-18-C-0016 ("ECATS"), as part of the | |||||
* DARPA SSITH research programme. | |||||
* | |||||
* This software was developed by SRI International and the University of | |||||
* Cambridge Computer Laboratory under DARPA/AFRL contract (FA8750-10-C-0237) | |||||
* ("CTSRD"), as part of the DARPA CRASH research programme. | |||||
* | |||||
* Redistribution and use in source and binary forms, with or without | |||||
* modification, are permitted provided that the following conditions | |||||
* are met: | |||||
* 1. Redistributions of source code must retain the above copyright | |||||
* notice, this list of conditions and the following disclaimer. | |||||
* 2. 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. | |||||
* | |||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND | |||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | |||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |||||
* SUCH DAMAGE. | |||||
* | |||||
* $FreeBSD$ | |||||
*/ | |||||
#pragma once | |||||
/* <bits/fcntl.h> includes <bits/stat.h> which contains a member __unused */ | |||||
#include "__unused_workaround_start.h" | |||||
#include_next <fcntl.h> | |||||
#include "__unused_workaround_end.h" | |||||
#ifdef __unused_undefd | |||||
#undef __unused_undefd | |||||
#define __unused __attribute__((unused)) | |||||
#endif | |||||
#include <sys/file.h> | |||||
#ifndef O_EXLOCK | |||||
#define O_EXLOCK (1 << 30) | |||||
#endif | |||||
#ifndef O_SHLOCK | |||||
#define O_SHLOCK (1 << 31) | |||||
#endif | |||||
#undef open | |||||
#define open(path, flags, ...) ({ \ | |||||
int __fd = (open)(path, flags, ##__VA_ARGS__); \ | |||||
if (flags & O_EXLOCK) flock(__fd, LOCK_EX); \ | |||||
if (flags & O_SHLOCK) flock(__fd, LOCK_SH); \ | |||||
__fd; }) |