/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (c) 1999 Marcel Moolenaar
* All rights reserved.
*
* 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
* in this position and unchanged.
* 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.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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.
*
* $FreeBSD$
*/
#ifndef _SYS_UCONTEXT_H_
#define _SYS_UCONTEXT_H_
#include <sys/signal.h>
#include <machine/ucontext.h>
#include <sys/_ucontext.h>
#define UCF_SWAPPED 0x00000001 /* Used by swapcontext(3). */
#if defined(_KERNEL) && defined(COMPAT_FREEBSD4)
#if defined(__i386__)
struct ucontext4 {
sigset_t uc_sigmask;
struct mcontext4 uc_mcontext;
struct ucontext4 *uc_link;
stack_t uc_stack;
int __spare__[8];
};
#else /* __i386__ */
#define ucontext4 ucontext
#endif /* __i386__ */
#endif /* _KERNEL */
#ifndef _KERNEL
__BEGIN_DECLS
int getcontext(ucontext_t *) __returns_twice;
ucontext_t *getcontextx(void);
int setcontext(const ucontext_t *);
void makecontext(ucontext_t *, void (*)(void), int, ...);
int signalcontext(ucontext_t *, int, __sighandler_t *);
int swapcontext(ucontext_t *, const ucontext_t *);
#if __BSD_VISIBLE
int __getcontextx_size(void);
int __fillcontextx(char *ctx) __returns_twice;
int __fillcontextx2(char *ctx);
#endif
__END_DECLS
#else /* _KERNEL */
struct thread;
/*
* Flags for get_mcontext(). The low order 4 bits (i.e a mask of 0x0f) are
* reserved for use by machine independent code. All other bits are for use
* by machine dependent code.
*/
#define GET_MC_CLEAR_RET 1
/* Machine-dependent functions: */
int get_mcontext(struct thread *, mcontext_t *, int);
int set_mcontext(struct thread *, mcontext_t *);
#endif /* !_KERNEL */
#endif /* !_SYS_UCONTEXT_H_ */
