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      1 /*	$NetBSD: ucontext.h,v 1.12 2025/03/13 06:36:20 rillig Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1999 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Klaus Klein.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #ifndef _UCONTEXT_H_
     33 #define _UCONTEXT_H_
     34 
     35 #include <sys/cdefs.h>
     36 #include <sys/ucontext.h>
     37 
     38 __BEGIN_DECLS
     39 int	getcontext(ucontext_t *) __returns_twice;
     40 int	setcontext(const ucontext_t *);
     41 
     42 #pragma GCC diagnostic push
     43 #ifndef  __cplusplus
     44 #pragma GCC diagnostic ignored "-Wstrict-prototypes"
     45 /* LINTED 287 "function declaration is not a prototype" */
     46 #endif
     47 void	makecontext(ucontext_t *, void (*)(), int, ...);
     48 #pragma GCC diagnostic pop
     49 
     50 int	swapcontext(ucontext_t * __restrict, const ucontext_t * __restrict);
     51 __END_DECLS
     52 
     53 #endif /* !_UCONTEXT_H_ */
     54